Granted Patent
Utility
US 5,268,152 · App. 07/984,135
Sulfur absorbents and process for removing sulfur from fluid streams
Inventors:
Gary A. Delzer, Ted H. Cymbaluk, Dennis R. Kidd, Gerhard P. Nowack
Patented Case
View Patent ↗
Granted: Dec 7, 1993
Filed: Dec 1, 1992
Inventors
Gary A. Delzer
Ted H. Cymbaluk
Dennis R. Kidd
Gerhard P. Nowack
Assignee (at issue)
Phillips Petroleum 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.