Granted Patent
Utility
US 5,404,968 · App. 08/194,058
Automotive screw lift system with interchangeable components
Inventor:
Robert H. Fletcher
Patented Case
View Patent ↗
Granted: Apr 11, 1995
Filed: Feb 9, 1994
Inventor
Robert H. Fletcher
Assignee (at issue)
Advantage Lift 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.