IP Library › Granted Patent US 4,743,601
Granted Patent Utility
US 4,743,601 · App. 07/072,832

Dihydro-1,4-oxazino(2,3-C)quinolines

Inventors: Karl Schonafinger, Helen H. Ong
Patented Case View Patent ↗
Granted: May 10, 1988 Filed: Jul 13, 1987
Inventors
Karl Schonafinger
Helen H. Ong
Assignee (at issue)
Hoechst Roussel Pharmaceuticals

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 4,743,601
App. No.
07/072,832
Filed
1987-07-13
Granted
1988-05-10
Kind
A