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Process for preparing nitraza amines

US 3,429,917 A · Inventors: FRANKEL MILTON B 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 February 25, 1969. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by February 25, 1986.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMarch 23, 1965
GrantedFebruary 25, 1969
Term endedFebruary 25, 1986
Application number—
Classification (CPC)—
Length3 pages

Timeline

Timeline From USPTO dates

1966196919721975197819811984Application filedMarch 23, 1965Patent grantedFeb 25, 1969Term endedFeb 25, 1986

Sources & verification

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

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comJustia PatentsFull text, claims and classification.patents.justia.comFreePatentsOnlineFull text and PDF.freepatentsonline.comEspacenetForeign family and legal status.European Patent Office

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