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.