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Method of rendering metals or alloys noncorrodible

US 1,961,635 A · Inventors: HERBERT HATFIELD WILLIAM

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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 June 5, 1934. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by June 5, 1951.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 9, 1929
GrantedJune 5, 1934
Term endedJune 5, 1951
Application number—
Classification (CPC)—
Length1 pages

Timeline

Timeline From USPTO dates

19301933193619391942194519481951Application filedDec 9, 1929Patent grantedJune 5, 1934Term endedJune 5, 1951

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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