Granted Patent
Utility
US 4,389,002 · App. 06/119,304
Injection molding nozzle
Inventors:
Richard D. Devellian, Paul M. Swenson
Patented Case
View Patent ↗
Granted: Jun 21, 1983
Filed: Feb 7, 1980
Inventors
Richard D. Devellian
Paul M. Swenson
Assignee (at issue)
KONA Corporation
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.