Granted Patent
Utility
US 5,086,825 · App. 07/521,590
Method for manufacturing foam pattern assemblies
Inventors:
Russell J. VanRens, Michael A. Proffitt
Patented Case
View Patent ↗
Granted: Feb 11, 1992
Filed: May 10, 1990
Inventors
Russell J. VanRens
Michael A. Proffitt
Assignee (at issue)
Outboard Marine 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.