Granted Patent
Utility
US 5,980,237 · App. 09/163,577
Injection molding nozzle
Inventors:
Paul M. Swenson, Michael Vasapoli, William J. Hume
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Sep 30, 1998
Inventors
Paul M. Swenson
Michael Vasapoli
William J. Hume
Assignee (at issue)
Dynisco, 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.