Granted Patent
Utility
US 4,723,739 · App. 06/755,525
Synchronous rectification track circuit
Inventor:
Raymond C. Franke
Patented Case
View Patent ↗
Granted: Feb 9, 1988
Filed: Jul 16, 1985
Inventor
Raymond C. Franke
Assignee (at issue)
American Standard 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.