IP Library › Granted Patent US 4,819,976
Granted Patent Utility
US 4,819,976 · App. 07/039,958

Door latch

Inventor: Brian J. Bert
Patented Case View Patent ↗
Granted: Apr 11, 1989 Filed: Apr 20, 1987
Inventor
Brian J. Bert
Assignee (at issue)
American Device Manufacturing Company

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 4,819,976
App. No.
07/039,958
Filed
1987-04-20
Granted
1989-04-11
Kind
A