Granted Patent
Utility
US 5,452,843 · App. 08/187,185
Method of brazing a composite bit using direct cooling means
Inventor:
Thomas M. Dennis
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Jan 25, 1994
Inventor
Thomas M. Dennis
Assignee (at issue)
Dennis Tool Company
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.