IP Library › Granted Patent US 4,931,357
Granted Patent Utility
US 4,931,357 · App. 07/297,729

Variable transverse webber and stratified webs formed therewith

Inventors: Gerald M. Marshall, Allan P. Farrington
Patented Case View Patent ↗
Granted: Jun 5, 1990 Filed: Jan 17, 1989
Inventors
Gerald M. Marshall
Allan P. Farrington
Assignee (at issue)
Chicopee

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 4,931,357
App. No.
07/297,729
Filed
1989-01-17
Granted
1990-06-05
Kind
A