IP Library › Granted Patent US 5,407,536
Granted Patent Utility
US 5,407,536 · App. 08/194,538

Amphoteric surfactants as glass fiber dispersants for the manufacture of uniform glass fiber mats

Inventors: Shafeek Razac, Manilal S. Dahanayake, James Griffin
Patented Case View Patent ↗
Granted: Apr 18, 1995 Filed: Feb 10, 1994
Inventors
Shafeek Razac
Manilal S. Dahanayake
James Griffin
Assignee (at issue)
Rhone-Poulenc, Inc.

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 5,407,536
App. No.
08/194,538
Filed
1994-02-10
Granted
1995-04-18
Kind
A