IP Library › Granted Patent US 4,428,948
Granted Patent Utility
US 4,428,948 · App. 05/765,146

Novel heterocyclic compounds

Inventors: George A. Miller, Lendon N. Pridgen
Patented Case View Patent ↗
Granted: Jan 31, 1984 Filed: Feb 3, 1977
Inventors
George A. Miller
Lendon N. Pridgen
Assignee (at issue)
Rohm and Haas Company

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 4,428,948
App. No.
05/765,146
Filed
1977-02-03
Granted
1984-01-31
Kind
A