IP Library › Granted Patent US 5,121,963
Granted Patent Utility
US 5,121,963 · App. 07/743,114

Retainer ring

Inventors: Kenneth J. Kwasnik, David J. Harrell
Patented Case View Patent ↗
Granted: Jun 16, 1992 Filed: Aug 9, 1991
Inventors
Kenneth J. Kwasnik
David J. Harrell
Assignee (at issue)
Lear Seating 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.

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 5,121,963
App. No.
07/743,114
Filed
1991-08-09
Granted
1992-06-16
Kind
A