IP Library Granted Patent US 4,245,665
Granted Patent Utility
US 4,245,665 · App. 06/091,676

Fluid heater for pneumatic control mechanisms

Inventors: Celius R. Anderson, Curtis E. Chadwick, III
Patented Case View Patent ↗
Granted: Jan 20, 1981 Filed: Oct 10, 1979
Inventors
Celius R. Anderson
Curtis E. Chadwick, III
Assignee (at issue)
Caterpillar Tractor Co.

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 4,245,665
App. No.
06/091,676
Filed
1979-10-10
Granted
1981-01-20
Kind
A