Granted Patent
Utility
US 5,459,178 · App. 08/327,465
Foundry mixes and their uses
Inventors:
Paul S. Chan, Satish S. Jhaveri, W. Graham Carpenter
Patented Case
View Patent ↗
Granted: Oct 17, 1995
Filed: Oct 21, 1994
Inventors
Paul S. Chan
Satish S. Jhaveri
W. Graham Carpenter
Assignee (at issue)
Ashland, 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.