Granted Patent
Utility
US 5,854,877 · App. 08/732,069
Economical wide range speed control system
Inventor:
Martyn A. Lewis
Patented Case
View Patent ↗
Granted: Dec 29, 1998
Filed: Oct 16, 1996
Inventor
Martyn A. Lewis
Assignee (at issue)
Seagate Technology LLC
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.