The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2000
Filed:
Oct. 05, 1998
Applicant:
Inventors:
Richard F Wulff, Maple Plain, MN (US);
Daniel G Giddings, Holland, MI (US);
Assignee:
Castex Incorporated, Holland, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15351 ; 15412 ;
Abstract
A floor cleaner comprising a base and a filter bag housing, the filter bag housing having a bag cavity which has an undulated inner wall for receiving a filter bag, the undulated wall having a plurality of elongated protrusions and adjacent intermediate elongated air flow recesses. A smooth outer wall is spaced from the inner wall.