Granted Patent
Utility
US 4,638,849 · App. 06/779,984
Nozzle assembly for die casting apparatus
Inventor:
Sydney H. Whitehorn
Patented Case
View Patent ↗
Granted: Jan 27, 1987
Filed: Aug 25, 1985
Inventor
Sydney H. Whitehorn
Assignee (at issue)
VSI, LLC
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.