Granted Patent
Utility
US 6,651,727 · App. 10/172,320
Method and apparatus for injecting molten metal into a mold
Inventors:
Greg A. Prince, Richard L. Smith, Harry Richey
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Jun 14, 2002
Inventors
Greg A. Prince
Richard L. Smith
Harry Richey
Assignee (at issue)
Delaware Machinery and Tool Company, Inc.
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.