Granted Patent
Utility
US 6,000,308 · App. 09/046,500
Screw drive method and apparatus
Inventors:
Robert L. LaFountain, Robert A. Carman
Patented Case
View Patent ↗
Granted: Dec 14, 1999
Filed: Mar 23, 1998
Inventors
Robert L. LaFountain
Robert A. Carman
Assignee (at issue)
Flow International Corporation
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.