IP Library Granted Patent US 4,603,070
Granted Patent Utility
US 4,603,070 · App. 06/777,739

Non-woven fibrous materials

Inventors: Margaret L. Steel, Philip Norton-Berry
Patented Case View Patent ↗
Granted: Jul 29, 1986 Filed: Sep 19, 1985
Inventors
Margaret L. Steel
Philip Norton-Berry
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES LIMITED

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 4,603,070
App. No.
06/777,739
Filed
1985-09-19
Granted
1986-07-29
Kind
A