Expired design patentArchiveSolo inventor
Music book page turner
US D275,402 S · Inventors: O'Brien; Gerard T.
Overview
The published document from the USPTO: abstract, claims, description. Open it full size
Read the whole patent
Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 4, 1984. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended September 4, 1998.
- A design patent protects only how a product looks. We check US rights only.
FiledOctober 9, 1981
GrantedSeptember 4, 1984
Term endedSeptember 4, 1998
Application number06/310462
Classification (CPC)—
Length4 pages
Timeline
Timeline From USPTO dates
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.