Granted Patent
Utility
US 5,316,459 · App. 08/089,276
Extrusion calibrator with insert plates
Inventors:
George Melkonian, Michael R. Crippen
Patented Case
View Patent ↗
Granted: May 31, 1994
Filed: Jul 8, 1993
Inventors
George Melkonian
Michael R. Crippen
Assignee (at issue)
Mikron 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.