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Method of and means for preventing corrosion of well tubing, casing, and working barrels

US 1,608,709 A · Inventors: AUKEN MILLS RONALD VAN

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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 30, 1926. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by November 30, 1943.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledSeptember 10, 1924
GrantedNovember 30, 1926
Term endedNovember 30, 1943
Application number—
Classification (CPC)E21B41/02 +2 more
Length6 pages

Timeline

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1925192719291931193319351937193919411943Application filedSep 10, 1924Patent grantedNov 30, 1926Term endedNov 30, 1943

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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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