Granted Patent
Utility
US 4,255,982 · App. 05/965,158
Starter assembly utilizing a castellated cup
Inventor:
Calvin V. Kern
Patented Case
View Patent ↗
Granted: Mar 17, 1981
Filed: Nov 30, 1978
Inventor
Calvin V. Kern
Assignee (at issue)
Eltra 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.