IP Library › Granted Patent US 5,061,379
Granted Patent Utility
US 5,061,379 · App. 07/594,605

Rotation indicator for oil filter mounting in engine block

Inventor: Dennis J. White
Patented Case View Patent ↗
Granted: Oct 29, 1991 Filed: Oct 9, 1990
Inventor
Dennis J. White

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,061,379
App. No.
07/594,605
Filed
1990-10-09
Granted
1991-10-29
Kind
A