Granted Patent
Utility
US 6,142,248 · App. 09/057,714
Reduced erosion nozzle system and method for the use of drill bits to reduce erosion
Inventors:
Gary M. Thigpen, Henry P. Rebollido, Jr., Coy M. Fielder, Brad Weston
Patented Case
View Patent ↗
Granted: Nov 7, 2000
Filed: Apr 2, 1998
Inventors
Gary M. Thigpen
Henry P. Rebollido, Jr.
Coy M. Fielder
Brad Weston
Assignee (at issue)
Diamond Products International, 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.