Granted Patent
Utility
US 4,419,276 · App. 06/307,242
Silver catalyst for the manufacture of ethylene oxide and a process for preparing the catalyst
Inventors:
Madan M. Bhasin, Glenn H. Warner
Patented Case
View Patent ↗
Granted: Dec 6, 1983
Filed: Sep 30, 1981
Inventors
Madan M. Bhasin
Glenn H. Warner
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.