Granted Patent
Utility
US 6,620,866 · App. 09/639,688
Rubber mixtures and vulcanizates containing agglomerated rubber gels
Inventors:
Werner Obrecht, Winfried Jeske
Patented Case
View Patent ↗
Granted: Sep 16, 2003
Filed: Aug 16, 2000
Inventors
Werner Obrecht
Winfried Jeske
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.