Granted Patent
Utility
US 4,415,875 · App. 06/379,283
Circuit breaker
Inventors:
Joseph F. Kirkup, Randall A. Horning
Patented Case
View Patent ↗
Granted: Nov 15, 1983
Filed: May 18, 1982
Inventors
Joseph F. Kirkup
Randall A. Horning
Assignee (at issue)
Mechanical Products
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.