Granted Patent
Utility
US 4,722,186 · App. 06/821,947
Dual pressure displacement control system
Inventors:
Joseph E. Louis, Craig C. Klocke
Patented Case
View Patent ↗
Granted: Feb 2, 1988
Filed: Jan 24, 1986
Inventors
Joseph E. Louis
Craig C. Klocke
Assignee (at issue)
Sundstrand Corporation
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.