Retractable double blade knife

• US D310,474 S
• Filed: 01/19/1988
• Issued: 09/11/1990
• Est. Priority Date: 01/19/1988
• Status: Expired due to Term

• Current Assignee: Daniel Bartsch, Jane A. Bartsch
• Original Assignee: Daniel Bartsch, Jane A. Bartsch
• Inventors: Bartsch, Daniel, Bartsch, Jane A.
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): Heflin, Clare E.
• Application Number:
  US07/145,198
• Time in Patent Office: 966 Days
• Field of Search: D 8/95-100, D 8/107, D 8/20, 30/155-161, 30/329, 30/332-339, 30/90.4, 30/314-316, 30/289, 30/293, 30/294, 30/2, 30/1.5, 30/109
• US Class Current: D08/99
• CPC Class Codes: N/A

Claims

1. The ornamental design for a retractable double blade knife, as shown and described.