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Forced air-cooled thermally calibrated circuit breaker

US 3,213,232 A · Inventors: GRYETKO CARL E

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4 drawing sheets

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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 19, 1965. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by October 19, 1982.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMay 9, 1963
GrantedOctober 19, 1965
Term endedOctober 19, 1982
Application number—
Classification (CPC)H01H9/52
Length9 pages

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