Granted Patent
Utility
US 6,167,587 · App. 09/112,527
Upright extraction cleaning machine
Inventors:
Gary A. Kasper, Jonathan A. Miner, Timothy E. Kasen, Kenneth M. Lenkiewicz, Eric C. Huffman, Luke E. Kelly
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Jul 8, 1998
Inventors
Gary A. Kasper
Jonathan A. Miner
Timothy E. Kasen
Kenneth M. Lenkiewicz
Eric C. Huffman
Luke E. Kelly
Assignee (at issue)
BISSELL Homecare, 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.