Granted Patent
Utility
US 4,492,519 · App. 06/012,364
Turbocharger exhaust gas by-pass valve
Inventors:
Bruce R. Owen, R. Charles Sarle
Patented Case
View Patent ↗
Granted: Jan 8, 1985
Filed: Feb 15, 1979
Inventors
Bruce R. Owen
R. Charles Sarle
Assignee (at issue)
Wallace Murray 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.