Granted Patent
Utility
US 6,446,841 · App. 10/018,427
Pre-compression spray pump
Inventor:
Ludovic Petit
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Dec 20, 2001
Inventor
Ludovic Petit
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.