Granted Patent
Utility
US 4,657,574 · App. 06/821,944
Mould portion with cooling means for use in moulding molten glass
Inventor:
Thomas V. Foster
Patented Case
View Patent ↗
Granted: Apr 14, 1987
Filed: Jan 24, 1986
Inventor
Thomas V. Foster
Assignee (at issue)
Emhart Industries, 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.