IP Library › Granted Patent US 4,309,490
Granted Patent Utility
US 4,309,490 · App. 05/731,064

Long life thionyl chloride cell

Inventors: David Chua, William C. Merz
Patented Case View Patent ↗
Granted: Jan 5, 1982 Filed: Oct 8, 1976
Inventors
David Chua
William C. Merz
Assignee (at issue)
Honeywell Limited

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 4,309,490
App. No.
05/731,064
Filed
1976-10-08
Granted
1982-01-05
Kind
A