Disposable cardboard safety cone
Description
In
Claims
The ornamental design for a disposable cardboard safety cone, as shown and described.
Referenced Cited
U.S. Patent Documents
4256050 | March 17, 1981 | Barnard |
4772869 | September 20, 1988 | Grammas et al. |
4798747 | January 17, 1989 | Laramee |
5090349 | February 25, 1992 | Wilson |
5225254 | July 6, 1993 | Foulke |
5566638 | October 22, 1996 | Rokosny |
7089878 | August 15, 2006 | Huang |
20030033742 | February 20, 2003 | Perelli et al. |
20040250744 | December 16, 2004 | Garcia |
20090235860 | September 24, 2009 | Julnes |
Patent History
Patent number: D615439
Type: Grant
Filed: Sep 1, 2009
Date of Patent: May 11, 2010
Inventor: David Edward Ludford (New Westminster, B.C.)
Primary Examiner: Caron Veynar
Assistant Examiner: George D Kirschbaum
Application Number: 29/316,177
Type: Grant
Filed: Sep 1, 2009
Date of Patent: May 11, 2010
Inventor: David Edward Ludford (New Westminster, B.C.)
Primary Examiner: Caron Veynar
Assistant Examiner: George D Kirschbaum
Application Number: 29/316,177
Classifications
Current U.S. Class:
D10/113;
D10/109