Granted Patent
Utility
US 4,806,895 · App. 07/107,089
Toroidal coil mount
Inventor:
William Petrow
Patented Case
View Patent ↗
Granted: Feb 21, 1989
Filed: Oct 8, 1987
Inventor
William Petrow
Assignee (at issue)
Zenith Electronics LLC
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.