IP Library Granted Patent US 4,333,741
Granted Patent Utility
US 4,333,741 · App. 05/810,342

Olefin-acrylonitrile copolymers and uses thereof

Inventors: Michael I. Naiman, Rudolf S. Buriks
Patented Case View Patent ↗
Granted: Jun 8, 1982 Filed: Jun 27, 1977
Inventors
Michael I. Naiman
Rudolf S. Buriks
Assignee (at issue)
Petrolite Corporation

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 4,333,741
App. No.
05/810,342
Filed
1977-06-27
Granted
1982-06-08
Kind
A