Granted Patent
Utility
US 6,386,300 · App. 09/665,586
Formation cutting method and system
Inventors:
Harry B. Curlett, David P. Sharp, Marvin Allen Gregory
Patented Case
View Patent ↗
Granted: May 14, 2002
Filed: Sep 19, 2000
Inventors
Harry B. Curlett
David P. Sharp
Marvin Allen Gregory
Assignee (at issue)
Curlett Family Ltd Partnership
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.