Granted Patent
Utility
US 5,735,348 · App. 08/726,112
Method and multi-purpose apparatus for dispensing and circulating fluid in wellbore casing
Inventor:
Samuel P. Hawkins, III
Patented Case
View Patent ↗
Granted: Apr 7, 1998
Filed: Oct 4, 1996
Inventor
Samuel P. Hawkins, III
Assignee (at issue)
FRANK'S INTERNATIONAL, LLC
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.