Granted Patent
Utility
US 5,186,848 · App. 07/678,905
Preparing sulfur solvent compositions comprising treating a sulfide and polyalkyleneoxyamine or polyalkyleneoxypolyamine mixture with an alkylamine or alkanolamine
Inventors:
Glenn T. Carroll, Michael J. Lindstrom
Patented Case
View Patent ↗
Granted: Feb 16, 1993
Filed: Mar 28, 1991
Inventors
Glenn T. Carroll
Michael J. Lindstrom
Assignee (at issue)
Elf Atochem North America, Inc.
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.