Granted Patent
Utility
US 5,851,257 · App. 08/670,973
Apparatus and method for pressing of glass articles at a high cavity rate
Inventors:
Herbert C. Kroh, David E. Crots
Patented Case
View Patent ↗
Granted: Dec 22, 1998
Filed: Jun 26, 1996
Inventors
Herbert C. Kroh
David E. Crots
Assignee (at issue)
LIBBEY GLASS 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.