IN reference to :- US2249572 Wearable bone-conduction hearing aid
Do I need permission to print an image from patent?
Is it public domain?
USE:- Printing would be on vinyl wallcovering and installed in college building.
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related: http://patents.stackexchange.com/questions/12449/has-anyone-used-copyright-infringement-in-the-application-as-grounds-to-block?lq=1 – arober11 Mar 24 '15 at 14:08
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Unless it has a specific copyright notice, patent images are in the public domain.
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copyright could have been expired. i think become public after 60 years. – Pushpak Mar 14 '15 at 04:53