Granted Patent
Utility
US 4,438,020 · App. 06/417,534
Catalyst suitable for preparing aldehydes
Inventors:
Mohammad M. Habib, Wayne R. Pretzer
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: Sep 13, 1982
Inventors
Mohammad M. Habib
Wayne R. Pretzer
Assignee (at issue)
Gulf Research & Development Company
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.