Patents and Patent Law

Yes. They are initially good for 20 years, but may be renewed.

In the USA and most other countries, expired patents cannot be renewed and the invention is permanently "public domain" property.

Both of the two patents are about the method of precluding fluid wicking

I am his son

Update:

The 1905 date appears on the slide of all Savage automatics -- it is the date Elbert Searle was awarded his patent for the pistol design which is the basis for all three production Savage automatic pistols and the few hundred .45 pistols made for the US Army competition for its first automatic sidearm (the Savage ended up as the only other finalist, but in the end came in second to the Colt pistol that we now know as the model 1911).

All three production models, the 1907, 1915 and 1917, came in both .32 and .380, but one, the "hammerless" model 1915, came standard with a "shrouded hammer" (ie, the striker lever ("hammer") is shortened and hidden under a curved steel plate or "shroud").

If the pistol has an "exposed hammer", look at the grips. The model 1907 has narrow grips with no screws in them. The model 1917 has wider, trapezoidal grips with a screw through each grip. (The only screws in any of the Savage automatics are the grip screws used for the model 1917 grips, and used with some special order grips (mother of pearl, etc) for the other models.

All but the model 1915 came standard with one of two types of exposed "hammer." The model 1907 had a rounded "cocking burr" from 1908-1919; in 1920 it came standard with a "cocking spur," although this had been a no-cost option for about 5 years. The model 1917 came standard with the "cocking spur," although the older "cocking burr" could still be special ordered. The "hammerless" model 1915 could also be special ordered with an exposed cocking burr or cocking spur, although only a few examples are known.

.380 pistols of all three models have s/n ending in "B" except for the first hundred or so .380 model 1907s (made in 1913), which had s/n beginning with a "B." Savage used only two s/n series covering all three models -- a numeric one for the .32 pistols, running from 1 (1908) to about 259472 (1926), and another with the "B" for .380 pistols, running from B2000 (1913) to about 29972B (1928). (This does not include some prototype versions which had special s/n.)

Original:

Model 1907 will be marked in two lines Manufactured by Savage Arms Co. / Utica, N.Y. U.S.A. Pat. Nov. 21, 1905. The .380 should also have a "B" before (or is it after?) the serial number. An early model will have a serial number between approximately 2000 and 10000 and be marked CAL / .380 to the right of the main inscription. Later styles (made 1919 to 1920) will have serial numbers from 13901 to 15749, CAL .380 at the end of the top line, and 9.m-m at the end of the second.

The Model 1917 is similar but the hammer is more visible and the grip is narrower at the top than the bottom. There is a slight difference in the markings: Savage Arms Corp. Utica, N.Y. U.S.A. CAL .380 / Patented November 21, 1905-9m-m. Serial numbers will range from 15750 to 29972.

it's more alive than ever - everyone is doing his research. trying to augment fuel for their vehicles, let me explain generating highly explosive browns gas (a molecule of two hydrogen atoms sharing an electron) from water ( two hydrogen atoms sharing the electrons of one oxygen atom) by electrolysis is a very common technique especially in welding (hydrogen flame will instantly melt steel) although it consume considerable electricity. One of Myers main points was to apply pulse width modulation (a series of small electrical pulses) to the electrolysis process to enhance yields of hydrogen while lowering the amperage. This allowed him to miniaturize the device suitable for vehicles, this is a "no free energy" device any more than a computer is gremlins and magic. And I believe his work is parallel to deriving the modern transistor from the vacuum tube and will be instrumental to relieving the 850,000,000 internal combustions engines ICE from the environmental disaster of petroleum and ethanol. you can read more about browns gas here http://www.brownsgas.com you can read more about his patents here. http://www.rexresearch.com/meyerhy/meyerhy.htm wozza.xing www.hhoforums.com

sewing machine

There is no way to predict the value for sure, but you can make an educated guess based on our knowledge of existing technology, and how the new idea would improve that. You have to look closely at what types of things could go wrong... how hard it is to implement, if there are other things that people are already using and they won't really want to change, etc.

It is an invention protected by a grant. So if somebody tries to copy it the they will be sued It means an invention protected by a grant. So if somebody tries to copy it then they will be sued.

Was this what you were looking for.

Depending on the condition of the pistol, the value can be anywhere from $100 to about $400.

Major Walter C. Wingfield

The Kershaw 1560 Whirlwind has an MSRP of $85, but you can find it for less elsewhere. It doesn't have the best steel, 440A, and it doesn't have a flipper, but it does use Ken Onion SpeedSafe which is deployed with the thumb stud. There are other Kershaw models that are sold for less than that MSRP and have better handle material. The Whirlwind has glass-filled nylon, but other Kershaws have G10, which is more slip/water/oil resistant.

Use nail polish remover on a cotton ball and rub firmly.

Roller Skates Roller Skating

You can submit the URL to delete in google Administrator .

4, as proven by Sheldon Cooper.

No - the Turtle was invented during the Revolutionary War, and as such, the United States as a country (and patents) did not exist at that time.

The first submarine to use patented designs was the SS-1, the U.S. Navy's first Diesel-Electric submarine, designed and built by John P. Holland.

The Steam-Engine as such was not patented, but assorted individual designs of the basic machine, and of its various parts, were patented by various manufacturers over the years.

Thomas Savery, in 1698, patented the first practical, atmospheric pressure, steam engine of 1 horsepower (about 750 watts)

I don't know the backgrond but own the same nutcracker myself. It is a nice rack and pinion cast iron device which clamps to a table or cabinet edge and has a lever pull arm to activate the rack and pinion which cracks the nut. I'd like to know more about its history but assume someone came up with the design and made and marketed it near Wharton, TX after 1914.

r.wallace silver soldered tray with number 0502...12 11t....date of manufactor/value???

Patents protect inventors from having their work copied by others. The work to be protected must be original, useful, and not obvious. An example of this is the popular drug Zocor. It was under patent until June, 2006, so no other company could make and sell that drug. The patent expired and now other companies can sell the drug labeled with its generic name, Simvastatin.

Once issued, a patent can be used to prevent others from making, using, selling or importing any product or service that infringes any valid claim in the issued patent, but only in countries where the patent is issued and valid.

The participant of ''Ig nobel prize competition '' JOHN KEOGH patented the wheel !

Well, one sold for I think it was £104.50 in 1999. If this is the 1940's War Time Pack you are talking about?

The devil is in the details. Is it factory nickel and engraving? You would need to get it lettered by Colt to find out if it left the factory the way it is now. If not, it would then depend on how old the nickel is and how good it was done. Same thing with the engraving. What is the barrel length? What are the grips made out of? What caliber is it chambered for? How much of the finish remains? Without knowing these things and many more, the best I can do is give you a price range of a few hundred to possibly multiple thousands.

Hridayeshwar Singh Bhati: An amazing special kid from India has invented maximum Circular or Cylindrical chess variants. He is a kid of 10.5 years suffering from fatal disease and has invented 3 types of Circular chess boards, which had led to 100 chess variants inventions and that took his country to top position in Chess variants inventions.

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=2026082.PN.&OS=PN/2026082&RS=PN/2026082

December 31, 1935