Granted Patent
Utility
US 4,448,600 · App. 06/433,140
Mould opening and closing mechanism
Inventors:
David Braithwaite, Stanley P. Jones
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: Sep 30, 1982
Inventors
David Braithwaite
Stanley P. Jones
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.