Granted Patent
Utility
US 4,884,977 · App. 07/295,457
Reinforced boot for spark plug cables
Inventor:
Ronald P. Sturdevan
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Jan 10, 1989
Inventor
Ronald P. Sturdevan
Assignee (at issue)
Prestolite Wire LLC
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.