Granted Patent
Utility
US 4,442,549 · App. 06/382,753
Meter drive circuit
Inventor:
William E. Main
Patented Case
View Patent ↗
Granted: Apr 10, 1984
Filed: May 27, 1982
Inventor
William E. Main
Assignee (at issue)
Motorola, 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.