Granted Patent
Utility
US 5,148,947 · App. 07/372,202
Drum extender apparatus for melting and dispensing hot melts
Inventors:
Edwin H. Epp, Joseph W. Dupray, Jr.
Patented Case
View Patent ↗
Granted: Sep 22, 1992
Filed: Jun 26, 1989
Inventors
Edwin H. Epp
Joseph W. Dupray, Jr.
Assignee (at issue)
Bostik, 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.