Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2008-05-05
2010-02-23
Redding, David A (Department: 3723)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S344000
Reexamination Certificate
active
07665181
ABSTRACT:
An air re-circulating vacuum for cleaning loose fabric and other non-tensioned surfaces is disclosed. The vacuum has an air intake and an air exhaust located together inside an air space to create a turbulent flow to pull air and debris through an air flow space as the air flow space is pulled over the surface to be cleaned. The vacuum can be battery powered, or powered by plugging into a standard household current.
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Office Action in U.S. Appl. No. 10/647,792 dated Feb. 28, 2006.
Invitation to Pay Additional Fees in related International Application No. PCT/US2008/062674 dated Sep. 9, 2008.
Office action dated Jun. 22, 2009 in related U.S. Appl. No. 11/849,012, filed Aug. 31, 2007.
Allen Donovan J.
Brew Patricia A.
Gebhard Albert W.
Oppedahl Patent Law Firm
Polson Margaret
Redding David A
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