Granted Patent
Utility
US 6,571,919 · App. 09/884,673
Removable cylinder arrangement for lift
Inventor:
Jason Stewart
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Jun 19, 2001
Inventor
Jason Stewart
Assignee (at issue)
Delaware Capital Formation, 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.