Granted Patent
Utility
US 4,721,906 · App. 06/763,095
One step RMS system
Inventors:
Hugo S. Ferguson, David L. Hollinger
Patented Case
View Patent ↗
Granted: Jan 26, 1988
Filed: Aug 6, 1985
Inventors
Hugo S. Ferguson
David L. Hollinger
Assignee (at issue)
Duffers Scientific, 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.