Granted Patent
Utility
US 6,471,097 · App. 09/760,038
Hand-operated pump with a free floating sleeve piston
Inventors:
Yannic Hermouet, Stephane Beranger, Claude Jouillat
Patented Case
View Patent ↗
Granted: Oct 29, 2002
Filed: Jan 12, 2001
Inventors
Yannic Hermouet
Stephane Beranger
Claude Jouillat
Assignee (at issue)
VALOIS 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.