Granted Patent
Utility
US 3,950,685 · App. 05/464,153
DC motor position controller
Inventor:
Melvin G. Kramer
Patented Case
View Patent ↗
Granted: Apr 13, 1976
Filed: Apr 25, 1974
Inventor
Melvin G. Kramer
Assignee (at issue)
LRC Holding Company, 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.