Granted Patent
Utility
US 4,988,939 · App. 07/400,460
Electric motor with variable commutation delay
Inventors:
Jerome J. Reichard, John G. Reichard
Patented Case
View Patent ↗
Granted: Jan 29, 1991
Filed: Aug 29, 1989
Inventors
Jerome J. Reichard
John G. Reichard
Assignee (at issue)
Thor Tech, 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.