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Stabilization of alkyl vinyl pyridines using tertiary butyl catechol and subsequent copolymerization of the alkyl vinyl pyridines with acrylonitrile or acrylate derivatives

US 3,255,160 A · Inventors: ROEDER RICHARD M

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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 June 7, 1966. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by June 7, 1983.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
Filed—
GrantedJune 7, 1966
Term endedJune 7, 1983
Application number—
Classification (CPC)C08F20/08 +2 more
Length3 pages

Timeline

Timeline From USPTO dates

196719691971197319751977197919811983Patent grantedJune 7, 1966Term endedJune 7, 1983

Sources & verification

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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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