Granted Patent
Utility
US 4,447,639 · App. 06/405,972
Oxidative carbonylation of alcohols to dialkyl oxalates using a heterogeneous iron promoted Pd-V-P catalyst
Inventors:
John A. Sofranko, Anne Mae Gaffney
Patented Case
View Patent ↗
Granted: May 8, 1984
Filed: Aug 6, 1982
Inventors
John A. Sofranko
Anne Mae Gaffney
Assignee (at issue)
Atlantic Richfield 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.