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Top portion of a protective respiratory cap

US D420,770 S · Assignee: 3M Innovative Properties Company · Inventors: Burns; James A.

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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.

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Why it's free to use

  • Granted February 15, 2000. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended February 15, 2014.
  • A design patent protects only how a product looks. We check US rights only.
FiledMarch 10, 1998
GrantedFebruary 15, 2000
Term endedFebruary 15, 2014
Application numberD/084785
Classification (CPC)—
Length5 pages

Timeline

Timeline From USPTO dates

2001200320052007200920112013Design grantedFeb 15, 2000Term endedFeb 15, 2014

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.