IP Library Granted Patent US 4,406,901
Granted Patent Utility
US 4,406,901 · App. 06/321,628

Ethers of substituted hydroxymethylpyrazines

Inventors: Paolo Cozzi, Antonio Pillan, Leone Bertone, Pier P. Lovisolo
Patented Case View Patent ↗
Granted: Sep 27, 1983 Filed: Nov 16, 1981
Inventors
Paolo Cozzi
Antonio Pillan
Leone Bertone
Pier P. Lovisolo
Assignee (at issue)
Farmitalia Carlo Erba S.p.A.

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 4,406,901
App. No.
06/321,628
Filed
1981-11-16
Granted
1983-09-27
Kind
A