IP Library Granted Patent US 5,312,889
Granted Patent Utility
US 5,312,889 · App. 07/687,933

Hydroxyfatty-acid-based monomers for producing plastics

Inventors: Rainer Frische, Juergen Volkheimer
Patented Case View Patent ↗
Granted: May 17, 1994 Filed: Jun 5, 1991
Inventors
Rainer Frische
Juergen Volkheimer
Assignee (at issue)
Battelle Institute e.V.

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 5,312,889
App. No.
07/687,933
Filed
1991-06-05
Granted
1994-05-17
Kind
A