Granted Patent
Utility
US 5,886,106 · App. 08/841,070
Halogenated butyl rubbers having a low halogen content
Inventors:
Anthony Sumner, Stefan Kelbch, Albert Verbiest
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Apr 29, 1997
Inventors
Anthony Sumner
Stefan Kelbch
Albert Verbiest
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.