Granted Patent
Utility
US 5,367,047 · App. 08/199,652
Preparation of polyaspartic acid by high temperature reaction
Inventor:
Louis L. Wood
Patented Case
View Patent ↗
Granted: Nov 22, 1994
Filed: Feb 22, 1994
Inventor
Louis L. Wood
Assignee (at issue)
SRCHEM, Inc.
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.