Keel for an airship
Description
The broken lines shown in the drawings represent structural environment and form no part of the claim.
Claims
The ornamental design for a keel for an airship, as shown and described.
Referenced Cited
U.S. Patent Documents
167036 | August 1875 | Stevenson |
518702 | April 1894 | Schermerhorn |
Patent History
Patent number: D583298
Type: Grant
Filed: Dec 26, 2007
Date of Patent: Dec 23, 2008
Inventors: Steven Swearingen (Shelton, WA), Therin Laney (Shelton, WA)
Primary Examiner: Charles A. Rademaker
Assistant Examiner: Dana L Sipos
Attorney: Christensen O'Connor Johnson Kindness PLLC
Application Number: 29/299,438
Type: Grant
Filed: Dec 26, 2007
Date of Patent: Dec 23, 2008
Inventors: Steven Swearingen (Shelton, WA), Therin Laney (Shelton, WA)
Primary Examiner: Charles A. Rademaker
Assistant Examiner: Dana L Sipos
Attorney: Christensen O'Connor Johnson Kindness PLLC
Application Number: 29/299,438
Classifications
Current U.S. Class:
Element Or Attachment (9) (D12/345)