Granted Patent
Utility
US 4,983,909 · App. 07/442,289
Repetitive-switching
Inventors:
Mark A. Swart, Charles J. Johnston
Patented Case
View Patent ↗
Granted: Jan 8, 1991
Filed: Nov 28, 1989
Inventors
Mark A. Swart
Charles J. Johnston
Assignee (at issue)
Everett/Charles Contact Products, 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.