Granted Patent
Utility
US 4,630,360 · App. 06/723,065
Method of making differential pressure operated electrical switch
Inventors:
Rolf H. Ochsner, Charles J. Everett
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Apr 15, 1985
Inventors
Rolf H. Ochsner
Charles J. Everett
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.