Granted Patent
Utility
US 4,626,767 · App. 06/684,730
Constant current r.f. generator
Inventors:
Robert R. Clappier, Steven Smith
Patented Case
View Patent ↗
Granted: Dec 2, 1986
Filed: Dec 21, 1984
Inventors
Robert R. Clappier
Steven Smith
Assignee (at issue)
Metcal, Inc.
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.