Outer surface of a crank handle

USD451781S · kind S · design

Assignee

• Pella Corporation · US

Inventors

• David J. Vande Steeg · Pella, US
• Andrew W. Middleswart · Indianola, US
• Marlo G. Van Klompenburg · Owatonna, US
• Bruce A. Baier · Pella, US
• Frank R. Wilgus · Powell, US
• Gregory J. Vetter · Owatonna, US

Key dates

• Filing date: Dec 6, 2000
• Grant date: Dec 11, 2001
• Expiry date: Dec 11, 2015

Classification

• Technology area (CPC —): General