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Expired, full termArchiveSolo inventor

Reciprocating electro-magnetic motor

US 2,994,792 A · Inventors: PARKER LELAND C

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1 drawing sheet

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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 August 1, 1961. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by August 1, 1978.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJune 27, 1956
GrantedAugust 1, 1961
Term endedAugust 1, 1978
Application number—
Classification (CPC)H02K33/10
Length3 pages

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