Granted Patent
Utility
US 6,515,125 · App. 09/803,261
Liquid partially trimerized polyisocyanates based on toluene diisocyanate and diphenylmethane diisocyanate
Inventors:
William E. Slack, Hersel T. Kemp, II, Kenneth P. Yonek
Patented Case
View Patent ↗
Granted: Feb 4, 2003
Filed: Mar 9, 2001
Inventors
William E. Slack
Hersel T. Kemp, II
Kenneth P. Yonek
Assignee (at issue)
Bayer Aktiengesellschaft
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.