Granted Patent
Utility
US 4,849,544 · App. 07/181,045
1,3-Diaminocyclohexanes
Inventors:
Scott A. Culley, Kestutis A. Keblys, Christopher J. Nalepa
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Apr 13, 1988
Inventors
Scott A. Culley
Kestutis A. Keblys
Christopher J. Nalepa
Assignee (at issue)
Ethyl 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.