Granted Patent
Utility
US 6,039,120 · App. 09/002,017
Adjustable isolation sleeve
Inventors:
Robert Lee Wilkins, Peter Andrew Robert Moles
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Dec 31, 1997
Inventors
Robert Lee Wilkins
Peter Andrew Robert Moles
Assignee (at issue)
Kvaerner Oilfield Products A.S.
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.