Granted Patent
Utility
US 4,487,246 · App. 06/367,270
System for locating cores in casting molds
Inventor:
Donald J. Frasier
Patented Case
View Patent ↗
Granted: Dec 11, 1984
Filed: Apr 12, 1982
Inventor
Donald J. Frasier
Assignee (at issue)
Howmet Turbine Components 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.