IP Library › Granted Patent US 4,732,746
Granted Patent Utility
US 4,732,746 · App. 06/853,539

Method of making high purity silicon nitride precursor

Inventors: Gary M. Crosbie, Ronald L. Predmesky
Patented Case View Patent ↗
Granted: Mar 22, 1988 Filed: Apr 18, 1986
Inventors
Gary M. Crosbie
Ronald L. Predmesky
Assignee (at issue)
Ford Motor 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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,732,746
App. No.
06/853,539
Filed
1986-04-18
Granted
1988-03-22
Kind
A