Granted Patent
Utility
US 4,983,340 · App. 07/458,347
Method for forming a high density metal boride composite
Inventor:
Lionel C. Montgomery
Patented Case
View Patent ↗
Granted: Jan 8, 1991
Filed: Dec 28, 1989
Inventor
Lionel C. Montgomery
Assignee (at issue)
Union Carbide Coatings Service Technology 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.