Granted Patent
Utility
US 4,356,725 · App. 06/198,836
Testing the power of a turbocharged internal combustion engine
Inventor:
Lee R. Armstrong
Patented Case
View Patent ↗
Granted: Nov 2, 1982
Filed: Oct 20, 1980
Inventor
Lee R. Armstrong
Assignee (at issue)
RCA 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.