Searching for Pat Numbers On Jewelry information? Follow the links below to find all the information you need and more.
https://www.myclassicjewelry.com/blog/vintage-jewelry-patents/
Sep 05, 2014 · 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. By the way, I tried …
http://www.patent-search-information.com/jewelrypatents.html
Aug 17, 2014 · If you already know the patent number of the item, see How to Search by Patent Number to locate the full-text of the patent. Another helpful approach is to find web sitea where someone else has already done the research to locate jewelry patents.
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.
https://www.antique-jewelry-investor.com/what-does-pat-on-the-clasp-mean-thats-the-only-word-or-number-comments.html
The Jewelry manufcturer has a copyright on the design of the clasp. I woud say this bracelet is manufactured as there is no Patent number. Clasps and jewelry findings provide a wealth of dating informatio. A great resource on clasps and findings (and with photos so that you can cross reference) I found on clasps and findings can be found Here....
http://www.biddingtons.com/content/patentchart.html
United States Patent Dates and Numbers 1836-1990 The United States Patent Office started issuing patent numbers in 1836. 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.
http://www.biddingtons.com/content/investingpatent.html
Using Patent Numbers in Dating Antiques & Fine Collectible Objects Even rookie investors in antiques and collectibles appreciate the importance of age in determining the value of an object. Frequently one finds that sellers guess-timate the age of a piece to …
https://www.oldstuffonly.com/patent_dates.asp
These dates are a handy reference that you may find useful for figuring out when an item was first produced. For example, if you find something with a patent number of 1,941,448 on it, you will find in the chart below that it was patented in 1933. Production of the item probably started that year.
https://www.jewelry-secrets.com/Blog/what-do-the-numbers-inside-your-ring-mean/
The numbers mean “ carat weight “. It’s the carat weight of the diamond (s) in your ring. If you have a diamond solitaire and you see.50 stamped inside the ring, that means the diamond is 1/2 carat..97 (like the ring in the photo) means that the diamond is 97 points, or just under one full carat (which is 100 points or 1.00 carat).
https://www.costumejewelrycollectors.com/vintage-costume-jewelry-research/costume-jewelry-marks/researching-costume-jewelry-history-jewelry-signatures-b/
Feb 09, 2020 · Mark: S.O. Bigney & Co., Pat. Oct. 6, ’08 Photos courtesy Pat Seal Mark: Bigney, Lady Launton — on bracelet from 1946. Much of this information is courtesy of Jim Katz, who has patents to Sidney O. Bigney from 1897 to 1936.
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