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US 2,235,293 A · Inventors: MELLON THELMA J

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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 March 18, 1941. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by March 18, 1958.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 31, 1936
GrantedMarch 18, 1941
Term endedMarch 18, 1958
Application number—
Classification (CPC)A47D13/02 +1 more
Length3 pages

Timeline

Timeline From USPTO dates

19371940194319461949195219551958Application filedDec 31, 1936Patent grantedMarch 18, 1941Term endedMarch 18, 1958

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