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Preparation of molds for dental and jewelry casting and the like

US 1,362,809 A · Inventors: MCMANUS JOHN 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 December 21, 1920. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by December 21, 1937.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledNovember 1, 1919
GrantedDecember 21, 1920
Term endedDecember 21, 1937
Application number—
Classification (CPC)A61C13/20 +1 more
Length5 pages

Timeline

Timeline From USPTO dates

192019221924192619281930193219341936Application filedNov 1, 1919Patent grantedDec 21, 1920Term endedDec 21, 1937

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

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