IP Library Granted Patent US 4,649,202
Granted Patent Utility
US 4,649,202 · App. 06/715,005

Brominative aromatization of 4-cyclohexenylpyridines

Inventors: Paul F. Ranken, Venkataraman Ramachandran
Patented Case View Patent ↗
Granted: Mar 10, 1987 Filed: Mar 22, 1985
Inventors
Paul F. Ranken
Venkataraman Ramachandran
Assignee (at issue)
Ethyl 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 4,649,202
App. No.
06/715,005
Filed
1985-03-22
Granted
1987-03-10
Kind
A