IP Library Granted Patent US 5,451,394
Granted Patent Utility
US 5,451,394 · App. 08/111,690

Quaternary salts of para-dialkylamino benzamide derivatives

Inventors: Ratan K. Chaudhuri, Anatoly Alexander, Anna A. Gripp
Patented Case View Patent ↗
Granted: Sep 19, 1995 Filed: Aug 25, 1993
Inventors
Ratan K. Chaudhuri
Anatoly Alexander
Anna A. Gripp
Assignee (at issue)
ISP Van Dyk 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 5,451,394
App. No.
08/111,690
Filed
1993-08-25
Granted
1995-09-19
Kind
A