IP Library › Granted Patent US 5,161,738
Granted Patent Utility
US 5,161,738 · App. 07/707,596

Pressure and temperature relief valve with thermal trigger

Inventor: Lloyd G. Wass
Patented Case View Patent ↗
Granted: Nov 10, 1992 Filed: May 30, 1991
Inventor
Lloyd G. Wass

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 5,161,738
App. No.
07/707,596
Filed
1991-05-30
Granted
1992-11-10
Kind
A