Granted Patent
Utility
US 4,528,119 · App. 06/625,595
Metal borides, carbides, nitrides, silicides, oxide materials and their method of preparation
Inventor:
Albert L. Barnes
Patented Case
View Patent ↗
Granted: Jul 9, 1985
Filed: Jun 28, 1984
Inventor
Albert L. Barnes
Assignee (at issue)
Eltech Systems 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.