Charles A. Walton.
a person who holds a patent lamp
There is no US patent 555408021. There is also no US patent 55408021.
Edigital in my opinion
The patent for veg-o-matic expired a long time ago, assuming it ever had one, and the trademark would only last as long as the owners continued to use it on products. US patents in the 1960s expired 17 years after being issued.
EBSCO Industries.
Abraham Lincoln. He received a patent in 1849 related to an idea he had about preventing ships from running aground.
RFID has been around since the early 1920s. Mario Cardullo's U.S. Patent 3,713,148 in 1973 for a passive radio transponder with memory was the first true ancestor of modern RFID. The first patent to be associated with the abbreviation RFID was granted to Charles Walton in 1983 (U.S. Patent 4,384,288). Since 1973 there have been 3,952 patents that used the term RFID. The RFID market has grown rapidly and reached $5 billion in sales in 2007 according to U.K based RFID analysis firm IDTechEx. The RFID market is predicted to hit $7 billion in 2008 and $25B by 2012. Patent Searches can also be made through the US Patent Office.
US patent 4 was awarded to Thomas Blanchard in 1836, for a machine to round the ends of tackle blocks.
Toni rudisill
Either a person or company holds patent on objects, such as a 'part'. Even if a part is discontinued, the company or person still holds the patent rights. It would be illegal for anyone to create the part and sell it; it would violate the patent holders' rights. You could be forced to pay thousands to millions in damages and fines.
It is unknown what the future holds considering technology.
Iula O. Carter is an inventor and educator in Ohio. She invented the portable nursery chair (potty chair) and holds the patent for it dated Feb. 6, 1960 and the patent number is 2923950.