Granted Patent
Utility
US 6,521,713 · App. 08/417,858
Vulcanizable EPDM containing rubber composition
Inventors:
Siegfried Wolff, Rainer Panenka, Marinus Haddeman, Hidenari Nakahama
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Apr 7, 1995
Inventors
Siegfried Wolff
Rainer Panenka
Marinus Haddeman
Hidenari Nakahama
Assignees (at issue)
Degussa AG
Mitsui Petrochemical Industries, Ltd.
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.