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Method of conserving energy in the treatment of wells

US 3,354,960 A · Inventors: BRAUNLICH JR FRANK 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 28, 1967. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by November 28, 1984.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJune 23, 1965
GrantedNovember 28, 1967
Term endedNovember 28, 1984
Application number—
Classification (CPC)E21B43/25
Length8 pages

Timeline

Timeline From USPTO dates

1966196819701972197419761978198019821984Application filedJune 23, 1965Patent grantedNov 28, 1967Term endedNov 28, 1984

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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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