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https://www.myclassicjewelry.com/blog/vintage-jewelry-patents/
Sep 05, 2014 · Locating pre-1976 patents using the US Patent and Trademark Office Database Full Page Images Note that Design patents, which includes vintage jewelry patents, must begin with the capital letter “D” followed by a 7-digit number. If your patent number is only 6-digits, add a leading zero, as shown in the illustration below.
http://www.patent-search-information.com/jewelrypatents.html
Aug 17, 2014 · Jewelry design patents are a great source of information. Design patents are used to protect the appearance of a manufactured item. Design patents pertain to the appearance of the item and protect the way an item looks. Individual sections of the Patent Search Information Site detail how to find patents using free resources on the Web.
https://www.youtube.com/watch?v=UeeemgltHSw
Jul 29, 2016 · www.thetiechest.com - Ever wonder what that patent number means on your piece of jewelry? How old is it? What what is made for? These are all questions that ...
https://www.upcounsel.com/jewelry-patents
Nov 09, 2020 · Design patents, including jewelry patents, should start with the letter D and have seven numbers. If the patent only has six numbers, add a zero at the beginning. After you enter the number, you'll see the first page. Use the icons or the links underneath them to look at different pages.Estimated Reading Time: 9 mins
http://www.biddingtons.com/content/patentchart.html
An amazing variety of 19th and 20th century American antiques, jewelry and collectibles are marked with the patent number identifying the year that the object was patented. 1836: 1 - 109. 1837: 110 - 545. 1838: 546-1,105. 1839: 1,106-1,464. 1840: 1,465-1,922. 1841: 1,923-2,412. 1842: 2,413-2,900.
https://www.jewelrypatents.com/patent.php?id=130141
Patent Information. Patent #: 130,141; Patent Issued: Oct 10, 1941; Category: Jewelry Finding; Company: Carl-Art
https://www.costumejewelrycollectors.com/vintage-costume-jewelry-research/research-resources/mechanical-and-utility-jewelry-patents/vintage-jewelry-patents-2/
Aug 24, 2019 · Also, visit Jewelry Patents, a large patent resource Jewelry Patents. Definitions: A Design Patent only protects the appearance of an article, not it’s structural or functional features, and is usually used for decorative items. A Utility Patent protects the structure and function of the invention. *Written permission necessary to use ...Estimated Reading Time: 30 secs
http://www.biddingtons.com/content/investingpatent.html
What follows on this linked Biddington's page is a sort of vintage chart for patented objects: it cross-references the patent number with the year in which the patent was issued. If an item was produced over a long period of time, this chart will tell you the earliest date it could have been made .
https://www.etsy.com/market/patent_number
Vintage Brooch.Patent number 2996.Gold tone.Faux Pearl.Looks like Miriam Haskell.
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