Granted Patent
Utility
US 5,914,291 · App. 08/847,260
Porous inorganic catalyst support
Inventors:
Christine Elizabeth Marsden, John Michael REGAN
Patented Case
View Patent ↗
Granted: Jun 22, 1999
Filed: May 1, 1997
Inventors
Christine Elizabeth Marsden
John Michael REGAN
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.