Granted Patent
Utility
US 5,630,977 · App. 08/543,986
Injection molding method and system with expandable cavity element
Inventors:
Paul Catalanotti, Sassan Tarahomi
Patented Case
View Patent ↗
Granted: May 20, 1997
Filed: Oct 17, 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.