Granted Patent
Utility
US 6,521,683 · App. 09/298,870
Antistatic agents and resin compositions incorporated therein
Inventors:
Roy Simmons, William P. Chatham, Michael L. Whitlock, James J. Ward
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Apr 26, 1999
Inventors
Roy Simmons
William P. Chatham
Michael L. Whitlock
James J. Ward
Assignee (at issue)
Witco 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.