Granted Patent
Utility
US 6,737,478 · App. 09/981,045
Rubber gels and rubber compounds containing phenolic resin adducts
Inventors:
Werner Obrecht, Anthony Sumner
Patented Case
View Patent ↗
Granted: May 18, 2004
Filed: Oct 16, 2001
Inventors
Werner Obrecht
Anthony Sumner
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.