Public Domain
De-Light: Making an Electric Light Bulb
1920 · Ford Motion Picture Laboratories
Details making an early electric bulb in a factory.
Confidence
100
— Legal Reasoning —
Why this status applies
The film 'De-Light: Making an Electric Light Bulb' is a short documentary produced by the Ford Motion Picture Laboratories in 1920. Under U.S. copyright law, all works published or registered before January 1, 1928, have entered the public domain due to the expiration of their maximum copyright term (95 years from publication).
This specific film was part of the 'Ford Educational Weekly' series (Issue No. 195). Because it was released in 1920, its copyright would have required renewal in its 28th year to extend protection, but even with a renewal, the 95-year statutory limit expired no later than the end of 2015. Consequently, the work is now free of copyright restrictions in the United States.
— Cited Sources —
Supporting facts
- https://archive.org/details/n-680456-de-light-making-an-electric-light-bulb-1920
- https://www.loc.gov/programs/national-film-preservation-board/resources/public-domain-films/
- Film Superlist: Motion Pictures in the U.S. Public Domain (1894-1939)
Research summary based on cited sources, not legal advice. Always consult a qualified copyright attorney before commercial use.