Granted Patent
Utility
US 6,257,786 · App. 09/569,015
Metering device for storage, mixture and release of detergent with water
Inventor:
Paul B. Thomas
Patented Case
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Granted: Jul 10, 2001
Filed: May 11, 2000
Inventor
Paul B. Thomas
Assignee (at issue)
Carrand Companies, 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.