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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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Unless it has a specific copyright notice, patent images are in the public domain.

See Are text and images in the patent copyrighted?

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  • copyright could have been expired. i think become public after 60 years.
    – Pushpak
    Commented Mar 14, 2015 at 4:53

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