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Drain cock

US 2,453,792 A · Inventors: HUFFERD GEORGE H et al.

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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 November 16, 1948. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by November 16, 1965.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMay 15, 1944
GrantedNovember 16, 1948
Term endedNovember 16, 1965
Application number—
Classification (CPC)—
Length3 pages

Timeline

Timeline From USPTO dates

1945194819511954195719601963Application filedMay 15, 1944Patent grantedNov 16, 1948Term endedNov 16, 1965

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

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