Granted Patent
Utility
US 4,876,294 · App. 07/243,672
Foundry binder systems based upon acrylated epoxy resins and epoxy resins
Inventors:
H. Randall Shriver, William R. Dunnavant, Bruce A. Gruber
Patented Case
View Patent ↗
Granted: Oct 24, 1989
Filed: Sep 13, 1988
Inventors
H. Randall Shriver
William R. Dunnavant
Bruce A. Gruber
Assignee (at issue)
Ashland Oil, 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.