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Method of and apparatus for sinking pipes or well holes into the ground

US 1,959,174 A · Inventors: MOORE THOMAS F

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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 May 15, 1934. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by May 15, 1951.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledNovember 26, 1932
GrantedMay 15, 1934
Term endedMay 15, 1951
Application number—
Classification (CPC)E21B7/18
Length8 pages

Timeline

Timeline From USPTO dates

1933193519371939194119431945194719491951Application filedNov 26, 1932Patent grantedMay 15, 1934Term endedMay 15, 1951

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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

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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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