Granted Patent
Utility
US 4,293,716 · App. 06/108,479
Process for preparing alkyldimethylamines
Inventors:
Harold E. Swift, Robert A. Innes, Phillip Adams
Patented Case
View Patent ↗
Granted: Oct 6, 1981
Filed: Dec 31, 1979
Inventors
Harold E. Swift
Robert A. Innes
Phillip Adams
Assignees (at issue)
Gulf Research & Development Company
Kewanee Industries, 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.