Patent Yard Sign in
Expired design patentArchive

Door knocker or similar article

US D281,394 S · Assignee: Valley Head Farms · Inventors: Porta; Barbara G.

USPTO PDF

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.

Google PatentsUSPTO PDF

Why it's free to use

  • Granted November 19, 1985. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended November 19, 1999.
  • A design patent protects only how a product looks. We check US rights only.
FiledApril 11, 1983
GrantedNovember 19, 1985
Term endedNovember 19, 1999
Application number06/483918
Classification (CPC)—
Length2 pages

Timeline

Timeline From USPTO dates

1986198819901992199419961998Design grantedNov 19, 1985Term endedNov 19, 1999

Sources & verification

Official USPTO records

Full published documentText and every drawing sheet as a PDF.USPTOFile historyStatus, office actions, notices, fee records and petitions.USPTO Patent CenterPatent Public Search recordSearchable full text and bibliographic data.USPTO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comJustia PatentsFull text, claims and classification.patents.justia.comFreePatentsOnlineFull text and PDF.freepatentsonline.comEspacenetForeign family and legal status.European Patent Office

Everything on this page comes from the USPTO record linked above.