Control knob
Description
Claims
The ornamental design for a control knob, as shown and described.
Referenced Cited
U.S. Patent Documents
1947911 | February 1934 | Kay |
2444485 | July 1948 | Aitcheson |
D206059 | October 1966 | Clayton |
D284653 | July 15, 1986 | Matican |
D327407 | June 30, 1992 | Clayton |
5921492 | July 13, 1999 | Bauer |
D501652 | February 8, 2005 | Pierson et al. |
D504378 | April 26, 2005 | Grossenbacher et al. |
D512128 | November 29, 2005 | Zieger et al. |
D545644 | July 3, 2007 | Fields |
Patent History
Patent number: D571310
Type: Grant
Filed: Dec 3, 2007
Date of Patent: Jun 17, 2008
Inventor: James L. Collins (Peace Valley, MO)
Primary Examiner: Daniel Bui
Assistant Examiner: Thomas J Johannes
Attorney: Richard L. Marsh
Application Number: 29/293,603
Type: Grant
Filed: Dec 3, 2007
Date of Patent: Jun 17, 2008
Inventor: James L. Collins (Peace Valley, MO)
Primary Examiner: Daniel Bui
Assistant Examiner: Thomas J Johannes
Attorney: Richard L. Marsh
Application Number: 29/293,603
Classifications