Reply by Ocelot

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Posted on Adirondack and it's patent

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2375 posts in 3247 days

#1 posted 08-10-2016 06:54 PM

A patent issued in 1905 has expired. Don’t worry about it. Anything done over 20 years ago, you can copy exactly. The patents are expired. That doesn’t mean that if you make 10000 of them, somebody might find a way to sue you anyway, but it’s extremely unlikely.

17 years for U.S.A. patents. I think European are 20 years.

Trademarks and copyrights are another issue. They are active much longer – used to be 70 years. I think they changed it for the Disney company when some of their old copyrights started expiring.


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