Granted Patent
Utility
US 4,919,608 · App. 07/253,127
Molding apparatus with collapsible core
Inventors:
Paul Catalanotti, Ali Lotfi
Patented Case
View Patent ↗
Granted: Apr 24, 1990
Filed: Oct 4, 1988
Inventors
Paul Catalanotti
Ali Lotfi
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.