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Rapid start and stop clutch mechanism for phonographs

US 2,441,836 A · Inventors: NAKKEN THEODORE 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 18, 1948. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by May 18, 1965.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJune 19, 1944
GrantedMay 18, 1948
Term endedMay 18, 1965
Application number—
Classification (CPC)—
Length5 pages

Timeline

Timeline From USPTO dates

1945194819511954195719601963Application filedJune 19, 1944Patent grantedMay 18, 1948Term endedMay 18, 1965

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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