Granted Patent
Utility
US 5,316,993 · App. 07/883,877
Molded bodies containing dealuminated zeolite Y and the process for their production
Inventors:
Elfriede Sextl, Eckehart Roland, Peter Kleinschmit, Akos Kiss
Patented Case
View Patent ↗
Granted: May 31, 1994
Filed: May 15, 1992
Inventors
Elfriede Sextl
Eckehart Roland
Peter Kleinschmit
Akos Kiss
Assignee (at issue)
Degussa AG
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.