Granted Patent
Utility
US 4,266,257 · App. 05/947,569
Motor over-heating protection circuit
Inventor:
George Rudich, Jr.
Patented Case
View Patent ↗
Granted: May 5, 1981
Filed: Oct 2, 1978
Inventor
George Rudich, Jr.
Assignee (at issue)
Johnson Controls, Inc.
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.