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:
Mar. 30, 2010
Filed:
Dec. 28, 2006
Applicant:
Mark K. Debe, Stillwater, MN (US);
Inventor:
Mark K. Debe, Stillwater, MN (US);
Assignee:
3M Innovative Properties Company, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A simple and inexpensive method of making a flow field plate that exhibits increased durability under conditions of use is provided. In some embodiments, the method includes the steps of applying a dry carbon powder to a flow field surface of the flow field plate and buffing the carbon powder onto the flow field surface. In some embodiments, the method includes the steps of rubbing a flow field surface of the flow field plate with a dry carbon solid and optionally buffing the carbon onto the flow field surface.