Granted Patent
Utility
US 5,433,381 · App. 08/263,530
Direct drive swivel
Inventors:
Andre Stenzel, Kyle Hawkins
Patented Case
View Patent ↗
Granted: Jul 18, 1995
Filed: Jun 22, 1994
Inventors
Andre Stenzel
Kyle Hawkins
Assignee (at issue)
CRC-Evans Rehabilitation Systems, 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.