Granted Patent
Utility
US 5,260,862 · App. 07/665,325
A-C power line filter
Inventor:
Richard N. Marsh
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Mar 6, 1991
Inventor
Richard N. Marsh
Assignee (at issue)
Constant Velocity Transmission Lines, 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.