Granted Patent
Utility
US 6,550,694 · App. 08/349,741
Dual component trigger sprayer which mixes components in discharge passage
Inventors:
Donald D. Foster, Martin S. Laffey, John A. Zurcher
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Dec 5, 1994
Inventors
Donald D. Foster
Martin S. Laffey
John A. Zurcher
Assignee (at issue)
Continental Sprayers International, 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.