Expired design patentArchive
Telephone connector block
US D273,289 S · Assignee: Porta Systems Corp. · Inventors: Hollfelder; Thomas A.
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 April 3, 1984. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended April 3, 1998.
- A design patent protects only how a product looks. We check US rights only.
FiledMarch 6, 1981
GrantedApril 3, 1984
Term endedApril 3, 1998
Application number06/241109
Classification (CPC)—
Length5 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.