Granted Patent
Utility
US 5,772,979 · App. 08/693,104
Aluminosilicates
Inventor:
Abraham Araya
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Dec 19, 1996
Inventor
Abraham Araya
Assignee (at issue)
Crosfield Limited
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.