Granted Patent
Utility
US 4,804,485 · App. 07/047,956
Polyalkyleneoxyamine catalysts for dialkyl disulfides and/or polysulfides used in dissolving sulfur
Inventors:
Glenn T. Carroll, Michael J. Lindstrom, William J. Tuszynski
Patented Case
View Patent ↗
Granted: Feb 14, 1989
Filed: May 8, 1987
Inventors
Glenn T. Carroll
Michael J. Lindstrom
William J. Tuszynski
Assignee (at issue)
Pennwalt 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.