Granted Patent
Utility
US 5,172,043 · App. 07/679,718
Energy using device
Inventor:
Kenneth E. Toops
Patented Case
View Patent ↗
Granted: Dec 15, 1992
Filed: Apr 3, 1991
Inventor
Kenneth E. Toops
Assignee (at issue)
Gates Energy 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.