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Sound recording and reproducing machine

US 2,089,309 A · Inventors: GUSTAV TAUSCHEK

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Overview

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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 August 10, 1937. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by August 10, 1954.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 30, 1933
GrantedAugust 10, 1937
Term endedAugust 10, 1954
Application number—
Classification (CPC)—
Length5 pages

Timeline

Timeline From USPTO dates

1934193719401943194619491952Application filedDec 30, 1933Patent grantedAug 10, 1937Term endedAug 10, 1954

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.