Granted Patent
Utility
US 6,158,486 · App. 09/196,265
Closed package liquid dispensing system
Inventors:
Scott R. Olson, Keith D. Johnson, Lynne A. Olson
Patented Case
View Patent ↗
Granted: Dec 12, 2000
Filed: Nov 19, 1998
Inventors
Scott R. Olson
Keith D. Johnson
Lynne A. Olson
Assignee (at issue)
ECOLAB 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.