Granted Patent
Utility
US 4,551,293 · App. 06/586,337
Method of forming spark plug boots
Inventors:
Larry F. Diehl, Jr., Robert M. Gibbon
Patented Case
View Patent ↗
Granted: Nov 5, 1985
Filed: Mar 5, 1984
Inventors
Larry F. Diehl, Jr.
Robert M. Gibbon
Assignee (at issue)
Jamak, 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.