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Expired, full termArchiveSolo inventor

Polish for varnished and painted surfaces

US 1,411,550 A · Inventors: ABBOTT FRANK E

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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 April 4, 1922. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by April 4, 1939.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledOctober 31, 1921
GrantedApril 4, 1922
Term endedApril 4, 1939
Application number—
Classification (CPC)C09G1/16
Length1 pages

Timeline

Timeline From USPTO dates

192219241926192819301932193419361938Application filedOct 31, 1921Patent grantedApril 4, 1922Term endedApril 4, 1939

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