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Control for electric motors

US 1,775,730 A · Inventors: MCNICOL FORREST C

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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 September 16, 1930. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by September 16, 1947.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJanuary 25, 1929
GrantedSeptember 16, 1930
Term endedSeptember 16, 1947
Application number—
Classification (CPC)—
Length4 pages

Timeline

Timeline From USPTO dates

193019321934193619381940194219441946Application filedJan 25, 1929Patent grantedSep 16, 1930Term endedSep 16, 1947

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

Everything on this page comes from the USPTO record linked above.