Granted Patent
Utility
US 6,637,626 · App. 09/668,480
Pump dispenser having one-piece plastic spring and gasket
Inventor:
Kenneth S. Bloom
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Sep 25, 2000
Inventor
Kenneth S. Bloom
Assignee (at issue)
Owens-Illinois Closure 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.