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:
Jan. 02, 2007
Filed:
Jul. 17, 2003
Applicant:
Martin Kowalski, Nuremberg, DE;
Inventor:
Martin Kowalski, Nuremberg, DE;
Assignee:
Pfleiderer Infrastruktechnik GmbH & Co. KG, Neumarkt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A concrete railroad tie, especially a two-block railroad tie, with an elastic rail support for ballast and solid tracks, with guide plates with twisting-prevention devices disposed in the supporting region between the base of the rail and the lateral, raised shoulders of the railroad tie, characterized in that the support area is constructed essentially flat without continuous, deep depressions.