Expired design patentArchive
Hockey helmet
US D277,331 S · Assignee: Cooper Canada Limited · Inventors: Clement; Leonard W. H.
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 29, 1985. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended January 29, 1999.
- A design patent protects only how a product looks. We check US rights only.
FiledOctober 12, 1982
GrantedJanuary 29, 1985
Term endedJanuary 29, 1999
Application number06/433775
Classification (CPC)—
Length4 pages
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.