IP Library › Granted Patent US 4,492,722
Granted Patent Utility
US 4,492,722 · App. 06/517,106

Preparation of glass-ceramic fibers

Inventors: George W. Ritter, II, Leonard J. Adzima
Patented Case View Patent ↗
Granted: Jan 8, 1985 Filed: Jul 25, 1983
Inventors
George W. Ritter, II
Leonard J. Adzima
Assignee (at issue)
Owens-Corning Fiberglas Corp.

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 4,492,722
App. No.
06/517,106
Filed
1983-07-25
Granted
1985-01-08
Kind
A