IP Library › Granted Patent US 5,157,057
Granted Patent Utility
US 5,157,057 · App. 07/738,081

Rim compositions using amino acid salt catalysts

Inventors: Maureen T. Pence, Kenneth G. McDaniel
Patented Case View Patent ↗
Granted: Oct 20, 1992 Filed: Jul 30, 1991
Inventors
Maureen T. Pence
Kenneth G. McDaniel
Assignee (at issue)
Arco Chemical Technology, L.P.

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 5,157,057
App. No.
07/738,081
Filed
1991-07-30
Granted
1992-10-20
Kind
A