Granted Patent
Utility
US 4,736,787 · App. 07/067,486
Lost foam handling system
Inventor:
Bruce A. McMellon
Patented Case
View Patent ↗
Granted: Apr 12, 1988
Filed: Jun 29, 1987
Inventor
Bruce A. McMellon
Assignee (at issue)
Vulcan Engineering Company
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.