Granted Patent
Utility
US 4,272,273 · App. 06/060,769
Plunger mechanism for glassware forming machine
Inventors:
Albert J. Trahan, Bruce R. Beckwith, David B. Murray
Patented Case
View Patent ↗
Granted: Jun 9, 1981
Filed: Jul 26, 1979
Inventors
Albert J. Trahan
Bruce R. Beckwith
David B. Murray
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.