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Method and means for producing intaglio printing elements

US 2,376,596 A · Inventors: HUGGINS OWEN 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 May 22, 1945. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by May 22, 1962.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJanuary 22, 1937
GrantedMay 22, 1945
Term endedMay 22, 1962
Application number—
Classification (CPC)G03F5/20
Length6 pages

Timeline

Timeline From USPTO dates

193819411944194719501953195619591962Application filedJan 22, 1937Patent grantedMay 22, 1945Term endedMay 22, 1962

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