Granted Patent
Utility
US 5,840,664 · App. 08/787,613
Preparation of bismuth dithiocarbamates
Inventors:
Thomas J. Karol, Steven G. Donnelly
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Jan 23, 1997
Inventors
Thomas J. Karol
Steven G. Donnelly
Assignee (at issue)
R.T. Vanderbilt Company, 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.