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Centrifugal milk-tester.

US 742,801 A

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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 October 27, 1903. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by October 27, 1920.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
Filed—
GrantedOctober 27, 1903
Term endedOctober 27, 1920
Application number—
Classification (CPC)B04B5/0421
Length5 pages

Timeline

Timeline From USPTO dates

190419061908191019121914191619181920Patent grantedOct 27, 1903Term endedOct 27, 1920

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.