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Removal of elemental sulfur from hydrocarbons

US 3,185,641 A · Inventors: COWDEN ROBERT H

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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 25, 1965. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by May 25, 1982.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 15, 1961
GrantedMay 25, 1965
Term endedMay 25, 1982
Application number—
Classification (CPC)C10G19/073
Length3 pages

Timeline

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1962196519681971197419771980Application filedDec 15, 1961Patent grantedMay 25, 1965Term endedMay 25, 1982

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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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