Granted Patent
Utility
US 4,326,152 · App. 06/085,343
System for controlling the in-phase operation of a pair of motors
Inventors:
James M. Blackburn, Douglas PASCHALL
Patented Case
View Patent ↗
Granted: Apr 20, 1982
Filed: Oct 15, 1979
Inventors
James M. Blackburn
Douglas PASCHALL
Assignee (at issue)
Western Electric Company, 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.