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Expired design patentArchiveSolo inventor

Combined door opener and knob

US D248,366 S · Inventors: Arends; John M.

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 July 4, 1978. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended July 4, 1992.
  • A design patent protects only how a product looks. We check US rights only.
FiledFebruary 4, 1976
GrantedJuly 4, 1978
Term endedJuly 4, 1992
Application number05/655144
Classification (CPC)—
Length2 pages

Timeline

Timeline From USPTO dates

1979198119831985198719891991Design grantedJuly 4, 1978Term endedJuly 4, 1992

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.