Granted Patent
Utility
US 4,679,583 · App. 06/812,367
Pneumatic control system, control means therefor and method of making the same
Inventors:
William L. Lucas, Clarence M. Asbill, III, Gerald L. Frank, David M. Miller
Patented Case
View Patent ↗
Granted: Jul 14, 1987
Filed: Dec 23, 1985
Inventors
William L. Lucas
Clarence M. Asbill, III
Gerald L. Frank
David M. Miller
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE 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.