Granted Patent
Utility
US 4,730,583 · App. 07/083,363
Valve stem oil deflector
Inventor:
Bernard G. Stritzke
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Aug 10, 1987
Inventor
Bernard G. Stritzke
Assignee (at issue)
Microdot 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.