Granted Patent
Utility
US 6,623,688 · App. 09/894,761
Gas-assisted two-shot injection molding process
Inventors:
David Gedritis, Kevin Bull
Patented Case
View Patent ↗
Granted: Sep 23, 2003
Filed: Jun 28, 2001
Inventors
David Gedritis
Kevin Bull
Assignee (at issue)
Cascade Engineering, 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.