Granted Patent
Utility
US 4,960,163 · App. 07/274,309
Fine grain casting by mechanical stirring
Inventors:
Que-Tsang Fang, Michael J. Kinosz
Patented Case
View Patent ↗
Granted: Oct 2, 1990
Filed: Nov 21, 1988
Inventors
Que-Tsang Fang
Michael J. Kinosz
Assignee (at issue)
Aluminum Company of America
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.