IP Library › Granted Patent US 4,664,688
Granted Patent Utility
US 4,664,688 · App. 06/810,000

Method and apparatus for forming glass fibers

Inventors: Lawrence J. Grubka, Randall E. Nyhart
Patented Case View Patent ↗
Granted: May 12, 1987 Filed: Dec 17, 1985
Inventors
Lawrence J. Grubka
Randall E. Nyhart
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 4,664,688
App. No.
06/810,000
Filed
1985-12-17
Granted
1987-05-12
Kind
A