Granted Patent
Utility
US 6,581,908 · App. 09/704,055
Dual cylinder jack with interchangeable attachments
Inventor:
Richard T. Francis
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Nov 1, 2000
Inventor
Richard T. Francis
Assignee (at issue)
Gray Automotive 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.