Granted Patent
Utility
US 6,015,846 · App. 08/532,807
Method of improving the properties of reclaimed sand used for the production of foundry moulds and cores
Inventors:
Philippe Toussaint, Patrick Robert Queval, Johannes A. Geraedts, Jacques Andre Caumont
Patented Case
View Patent ↗
Granted: Jan 18, 2000
Filed: Dec 29, 1995
Inventors
Philippe Toussaint
Patrick Robert Queval
Johannes A. Geraedts
Jacques Andre Caumont
Assignee (at issue)
Borden France 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.