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:
Dec. 06, 1977
Filed:
Dec. 01, 1975
Applicant:
Inventor:
Robert D DeMaster, Afton, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01B / ;
U.S. Cl.
CPC ...
238 14 ; 106 36 ; 428372 ;
Abstract
A mat useful, inter alia, to provide traction under the wheels of a vehicle comprises an open-mesh net of strands that are encased around their individual circumferences with a frictional coating that comprises a layer of binder material adhered to the strand and a monolayer of abrasive granules partially embedded in the layer of binder material.