Granted Patent
Utility
US 4,721,834 · App. 06/857,496
Lever control system
Inventors:
Charles H. Mark, Ellis P. Lipp
Patented Case
View Patent ↗
Granted: Jan 26, 1988
Filed: Apr 30, 1986
Inventors
Charles H. Mark
Ellis P. Lipp
Assignee (at issue)
Emhart Industries, 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.