Granted Patent
Utility
US 5,540,582 · App. 08/420,139
Expandable cavity core element for use in an injection molding system
Inventors:
Paul Catalanotti, Sassan Tarahomi
Patented Case
View Patent ↗
Granted: Jul 30, 1996
Filed: Apr 11, 1995
Inventors
Paul Catalanotti
Sassan Tarahomi
Assignee (at issue)
Roehr Tool 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.