Granted Patent
Utility
US 6,653,396 · App. 10/042,295
Process for the preparation of zeolite A for use in formulations based on two-component polyurthane resins
Inventors:
Serge Nicolas, Paul-Guillaume Schmitt
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Jan 11, 2002
Inventors
Serge Nicolas
Paul-Guillaume Schmitt
Assignee (at issue)
CECA S.A.
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.