Granted Patent
Utility
US 6,340,656 · App. 09/501,554
Light, extruded compositions containing a light, extrudable, ceramic carrier, methods for their use, and processes for their preparation
Inventors:
Norikazu Takayanagi, Masaomi Kimpara, Munehiro Suzuki
Patented Case
View Patent ↗
Granted: Jan 22, 2002
Filed: Feb 9, 2000
Inventors
Norikazu Takayanagi
Masaomi Kimpara
Munehiro Suzuki
Assignee (at issue)
American Cyanamid Company
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.