Granted Patent
Utility
US 6,439,302 · App. 09/697,406
Stripper packer
Inventor:
Jim Wiedemann
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Oct 26, 2000
Inventor
Jim Wiedemann
Assignee (at issue)
Vanoil Equipment 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.