You have to file a Utility patent application form with The United States Patent and Trademark Office. A utility patent applies to any invention or new useful improvement thereof.
By "legal" you are probably asking whether another company can sue you ofr patent or copyright infringement. It is seldom a criminal offense to manufacture a product similar to an existing product.It depends on how similar the new product is to the original, whether you incorporate any characteristics of the other product that the original company has patented, and whether you use any processes in the production that are patented. Quite a number of companies have been sued for creating products that duplicate the "look and feel" of an existing product. You also have to watch out for copyright and trademark infringement.
Offer them something that's similar
The Saxhorn family of instruments was patented in 1845 by Adolphe Sax, who recorded a patent for the Saxophone family of instruments one year later. Saxhorns are similar to cornets, euphoniums and tubas which existed before Sax's patent, so there is disagreement as to whether Sax invented something new or just modified something that already existed.
dermablend durban, south Africa
Only if the product doesn't have a registered trademark on the name. If your product has similar functionality to an existing product and you call it the same thing, you would be at risk of "passing off" your product as theirs and if they have trademarked the name, you would be at risk of being sued.
Not for the exact same crime - you are already found guilty and are being penalised for it, if you have been sentenced - but for a similar one, yes.
The design of the item is copyrighted, meaning you can't manufacture a product that looks like the original (a knock-off), or is so similar it's obviously derived from the original. The silverplate is pretty much irrelevant, unless it is a unique factor of the design, which is unlikely. Silver plating processes were once patented, not copyrighted. Some techniques may still be patented, but you wouldn't be able to tell one from another by looking at the product.
you can find it on gun broker. atleast find something very similar.
Otter Pops made their debut in 1970 as a product of the National Pax company. Similar products were already in existence, produced by other companies.
A generic product
When a website gives a suggestion on what to buy
No, a person can not use a Toys-R-Us coupon on a similar product. The product has to be what is described in the coupon.