Granted Patent
Utility
US 6,431,291 · App. 09/881,480
Packerfoot with bladder assembly having reduced likelihood of bladder delamination
Inventors:
Norman Bruce Moore, Phillip W. Mock
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Jun 14, 2001
Inventors
Norman Bruce Moore
Phillip W. Mock
Assignee (at issue)
Western Well Tool, 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.