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Appliance for and method of boxing-in impressions, dentures, and the like

US 1,834,980 A · Inventors: STEALY ELZA R

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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.

Why it's free to use

  • Granted December 8, 1931. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by December 8, 1948.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMarch 1, 1930
GrantedDecember 8, 1931
Term endedDecember 8, 1948
Application number—
Classification (CPC)A61C13/0027
Length6 pages

Timeline

Timeline From USPTO dates

193119331935193719391941194319451947Application filedMarch 1, 1930Patent grantedDec 8, 1931Term endedDec 8, 1948

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