IP Library Granted Patent US 4,845,122
Granted Patent Utility
US 4,845,122 · App. 06/938,305

Anti-allergy treatment using 2-(substituted amino)-4,5-dihydro-4-oxo-3-furancarboxylic acids and derivatives thereof

Inventors: Vassil S. Georgiev, Clyde R. Kinsolving, Robert Mack
Patented Case View Patent ↗
Granted: Jul 4, 1989 Filed: Dec 5, 1986
Inventors
Vassil S. Georgiev
Clyde R. Kinsolving
Robert Mack

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 4,845,122
App. No.
06/938,305
Filed
1986-12-05
Granted
1989-07-04
Kind
A