Granted Patent
Utility
US 5,364,440 · App. 08/024,250
Anti-clumping products, compositions containing the said products and treatments in which the said products are used
Inventors:
Joseph Schapira, Jean-Claude Cheminaud, Pascal Petitbon, Dominique Imbert
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Mar 1, 1993
Inventors
Joseph Schapira
Jean-Claude Cheminaud
Pascal Petitbon
Dominique Imbert
Assignee (at issue)
CFPI
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.