IP Library › Granted Patent US 4,240,077
Granted Patent Utility
US 4,240,077 · App. 05/882,885

Thermostat

Inventors: Paul R. Hughes, John E. Campbell
Patented Case View Patent ↗
Granted: Dec 16, 1980 Filed: Mar 2, 1978
Inventors
Paul R. Hughes
John E. Campbell
Assignee (at issue)
United Brands 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 4,240,077
App. No.
05/882,885
Filed
1978-03-02
Granted
1980-12-16
Kind
A