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:
Aug. 08, 1978
Filed:
Mar. 08, 1976
Geoffrey Lees, Stratford upon Avon, GB;
Arthur R Williams, Birmingham, GB;
Robert Bond, Lichfield, GB;
Dunlop Limited, London, GB;
Abstract
A road surface comprising a blend of at least two aggregate materials disposed in a binder matrix and having different rates of wear as judged by the aggregate test B.S.812 1967, each aggregate material comprising individual aggregate particles of a size such that they will be retained on a British Standard 1/4 inch sieve, or its metric equivalent, and will pass through a British Standard 3/4 inch sieve, or its metric equivalent, and having a surface micro-texture in the range defined by asperity heights of a minimum texture depth of 5 microns and a maximum texture of 500 microns, the individual aggregate particles being disposed in the binder matrix so that the shortest distance between any two adjacent particles is 1 to 6 mm and the texture depth of the aggregate particles in the binder matrix is between 1 and 5 mm, of which the following is a specification.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile