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US 2,230,126 A · Inventors: WESTERVELT WILLIAM I

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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 January 28, 1941. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by January 28, 1958.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledNovember 12, 1937
GrantedJanuary 28, 1941
Term endedJanuary 28, 1958
Application number—
Classification (CPC)—
Length5 pages

Timeline

Timeline From USPTO dates

1938194119441947195019531956Application filedNov 12, 1937Patent grantedJan 28, 1941Term endedJan 28, 1958

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.