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2-arylbenzo(b) thiophen - 3(2h) - one - 1,1 - dioxides and 2 - arylnaphtho(2,3-b)thiophen-3(2h)-one-1,1-dioxides

US 3,597,448 A · Inventors: LOMBARDINO JOSEPH G

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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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  • Granted August 3, 1971. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by August 3, 1988.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 17, 1969
GrantedAugust 3, 1971
Term endedAugust 3, 1988
Application number—
Classification (CPC)C07D333/64 +1 more
Length12 pages

Timeline

Timeline From USPTO dates

1970197219741976197819801982198419861988Application filedDec 17, 1969Patent grantedAug 3, 1971Term endedAug 3, 1988

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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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