Granted Patent
Utility
US 4,292,577 · App. 06/019,936
A.C. Motor control circuit
Inventors:
Michael R. Cesarz, Richard E. Stobbe
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Mar 12, 1979
Inventors
Michael R. Cesarz
Richard E. Stobbe
Assignee (at issue)
Kearney & Trecker Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.