IP Library Granted Patent US 4,647,405
Granted Patent Utility
US 4,647,405 · App. 06/529,303

Boride-alumina composite

Inventor: Pierre E. Debely
Patented Case View Patent ↗
Granted: Mar 3, 1987 Filed: Sep 3, 1983
Inventor
Pierre E. Debely
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.

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Quick Facts
Patent No.
US 4,647,405
App. No.
06/529,303
Filed
1983-09-03
Granted
1987-03-03
Kind
A