Granted Patent
Utility
US 5,641,921 · App. 08/517,814
Low temperature, low pressure, ductile, bonded cermet for enhanced abrasion and erosion performance
Inventors:
Mahlon D. Dennis, Barton Hampshire
Patented Case
View Patent ↗
Granted: Jun 24, 1997
Filed: Aug 22, 1995
Inventors
Mahlon D. Dennis
Barton Hampshire
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.