Granted Patent
Utility
US 5,961,710 · App. 09/022,157
Inorganic pigment granules process for their production and their use
Inventors:
Gunter Linde, Manfred Eitel, Olaf Schmidt-Park, Kai Butje
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Feb 12, 1998
Inventors
Gunter Linde
Manfred Eitel
Olaf Schmidt-Park
Kai Butje
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.