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:
Jul. 14, 2015
Filed:
Sep. 27, 2011
Applicants:
Liang Cheng, Shanghai, CN;
Gianmauro Vella, Shanghai, CN;
Feng Zeng, Shanghai, CN;
Inventors:
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 13/12 (2006.01); A47L 1/06 (2006.01); A47L 1/16 (2006.01); B25G 1/06 (2006.01); B25G 3/10 (2006.01); A47L 13/44 (2006.01);
U.S. Cl.
CPC ...
A47L 1/06 (2013.01); A47L 1/16 (2013.01); B25G 1/06 (2013.01); B25G 3/10 (2013.01); A47L 13/12 (2013.01); A47L 13/44 (2013.01);
Abstract
Disclosed is a cleaning device that comprises a first arm portion with an adjustable length, a first cleaning portion, a second arm portion supporting the first cleaning portion, and a rotating adjustable portion located between the first arm portion and the second arm portion, the first arm portion being rotatable in a predefined range about the second arm portion.