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How old is the metropolitan patent royal Irish constabulary police whistle made by j Hudson 131 barr street?
Wiki User
∙ 10y ago
1885
Wiki User
∙ 10y ago
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How old is metropolitan police whistle 244 barr street Made by J Hudson Birmingham?
J Hudson & Co moved to 244 Barr Street in 1909, so a "244 Barr Street" whistle is not older than 1909. Whistles made at the 244 address until 1922 have the top cap stamped 'Patent 5727.08', after that date it is plain. 'Met' issue calls marked 'Barr Street Hockley' date from about 1937. The last issued whistles marked 'Metropolitan Police' are from c.1938 and have no address at all.
What is value of police whistle patent 5727-08 made by JHudson and Co pre 1922?
The key to the best value, if you are selling, is to find a person who really wants the item. To me, your whistle is interesting, but only worth a few dollars, but to a collector of police whistles, it could be worth a lot more.
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There are many companies out there that will tell you how to get a patent, however, most are scams. You can apply for a patent with the US Patent Office at www.uspto.gov.
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An improvement of an existing invention is itself an invention, and can be patented like any other invention. Contact a patent practitioner (patent agent or patent attorney) for assistance. The United States Patent and Trademark Office has lists and addresses of patent practitioners in every state. Avoid companies that advertise they will "help you get a patent."
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Patent pending is a warning that a patent application has been filed. It is completely worthless until and unless a patent is actually issued for that invention. Patent number notice means a patent with that number was issued for the invention that is implemented in the product labeled with that number.
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