Step ladder
Latest Cosco Management, Inc. Patents:
Description
Claims
The ornamental design for a step ladder, as shown and described.
Referenced Cited
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Patent History
Patent number: D576290
Type: Grant
Filed: May 9, 2006
Date of Patent: Sep 2, 2008
Assignee: Cosco Management, Inc. (Wilmington, DE)
Inventors: Thomas J. Meyers (Greenwood, IN), Paul F. Meyers (Fishers, IN)
Primary Examiner: Doris Clark
Attorney: Barnes & Thornburn LLP
Application Number: 29/246,770
Type: Grant
Filed: May 9, 2006
Date of Patent: Sep 2, 2008
Assignee: Cosco Management, Inc. (Wilmington, DE)
Inventors: Thomas J. Meyers (Greenwood, IN), Paul F. Meyers (Fishers, IN)
Primary Examiner: Doris Clark
Attorney: Barnes & Thornburn LLP
Application Number: 29/246,770
Classifications
Current U.S. Class:
Ladder (D25/64)