U s patent dating
Since these are not considered designs, but functional objects, they continue to patent them even today.If you see a patent number on jewelry, you do need to research it, and not just assume that you have a piece of pre-1955 jewelry. Please click the comments link below this article to add your comments.Recently, I acquired a lovely vintage Napier necklace and bracelet set that had only “Napier” and a patent number stamped on the clasps. To share this article, use the share buttons below.There was no copyright symbol, so it’s safe to assume that the set was produced prior to 1955, right? The set did seem very new to me, and when I looked up the patent number it was for the clasp, which was patented in 1988! You can also use the Social Media buttons in the right sidebar to visit my pages.You can access it here: USPTO Online Patent Database.In the “PATENTS” menu there is a “Patent Search” link, which displays the page shown in the image below: Patents prior to 1976, which includes vintage jewelry patents, are scanned images in PDF format stored in the Full-Page Images database.Before downloading the patent document, make sure to click the “Full Pages” button so that the entire document will be downloaded.
If your patent number is only 6-digits, add a leading zero, as shown in the illustration below.I like to give all of my downloaded files descriptive names. For example, I knew that I would use the patent document shown above on my web site, so I downloaded it to folder where I work on my web site files. Another way to get information about a jewelry patent is to visit the Google Patents Search site at