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Expired, full termArchiveSolo inventor

Stencil printing machine

US 2,019,375 A · Inventors: SYLVESTER WHEELWRIGHT JOHN

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Overview

The published document from the USPTO: abstract, claims, description and drawings. Open it full size

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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 October 29, 1935. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by October 29, 1952.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 18, 1934
GrantedOctober 29, 1935
Term endedOctober 29, 1952
Application number—
Classification (CPC)B41F15/0836 +1 more
Length10 pages

Timeline

Timeline From USPTO dates

193519371939194119431945194719491951Application filedDec 18, 1934Patent grantedOct 29, 1935Term endedOct 29, 1952

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