Granted Patent
Utility
US 4,758,419 · App. 06/600,180
Magnesium-aluminum-phosphorus-silicon-oxide molecular sieve compositions
Inventors:
Brent M. T. Lok, Lawrence D. Vail, Edith M. Flanigen
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Apr 13, 1984
Inventors
Brent M. T. Lok
Lawrence D. Vail
Edith M. Flanigen
Assignee (at issue)
Union Carbide Corporation
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.