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Stereoscopic method and apparatus

US 2,301,254 A · Inventors: CARNAHAN CHALON W

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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 November 10, 1942. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by November 10, 1959.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJuly 7, 1938
GrantedNovember 10, 1942
Term endedNovember 10, 1959
Application number—
Classification (CPC)—
Length9 pages

Timeline

Timeline From USPTO dates

1939194219451948195119541957Application filedJuly 7, 1938Patent grantedNov 10, 1942Term endedNov 10, 1959

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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