Granted Patent
Utility
US 5,646,338 · App. 08/461,073
Deposition sensing method and apparatus
Inventors:
Michel Mercusot, Ghislain Declercq
Patented Case
View Patent ↗
Granted: Jul 8, 1997
Filed: Jun 5, 1995
Inventors
Michel Mercusot
Ghislain Declercq
Assignee (at issue)
Betzdearborn, Inc.
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.