Granted Patent
Utility
US 5,631,214 · App. 08/509,277
Preparation of bismuth dithiocarbamates
Inventors:
Thomas J. Karol, Steven G. Donnelly
Patented Case
View Patent ↗
Granted: May 20, 1997
Filed: Jul 31, 1995
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.