Granted Patent
Utility
US 4,725,010 · App. 07/011,945
Control apparatus and method
Inventor:
David J. Lothamer
Patented Case
View Patent ↗
Granted: Feb 16, 1988
Filed: Feb 4, 1987
Inventor
David J. Lothamer
Assignee (at issue)
Essex Group 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.