IP Library › Granted Patent US 4,328,140
Granted Patent Utility
US 4,328,140 · App. 06/193,751

Fluoroelastomer processing aid

Inventors: Michael P. Singletary, James L. Fabian
Patented Case View Patent ↗
Granted: May 4, 1982 Filed: Oct 3, 1980
Inventors
Michael P. Singletary
James L. Fabian
Assignee (at issue)
Raybestos-Manhattan, 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 4,328,140
App. No.
06/193,751
Filed
1980-10-03
Granted
1982-05-04
Kind
A