Expired design patentArchiveSolo inventor
Key ring
US D435,720 S · Inventors: Perthou; Peter M.
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 January 2, 2001. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended January 2, 2015.
- A design patent protects only how a product looks. We check US rights only.
FiledMay 7, 1999
GrantedJanuary 2, 2001
Term endedJanuary 2, 2015
Application numberD/104549
Classification (CPC)A44B15/00 +2 more
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.