Door security bar
Description
Claims
The ornamental design for a door security bar, as shown and described.
Referenced Cited
U.S. Patent Documents
| D219362 | December 1970 | Snyder |
| 3583743 | June 1971 | Newell |
| 3615114 | October 1971 | Harris |
| D230701 | March 1974 | Lewis et al. |
| D236082 | July 1975 | Williams et al. |
| 5605364 | February 25, 1997 | Shelledy |
| 6705652 | March 16, 2004 | Engel |
| 6834896 | December 28, 2004 | Smith |
| D504302 | April 26, 2005 | Wood |
| D540150 | April 10, 2007 | Wilson |
| D632946 | February 22, 2011 | Hartgens |
| D789176 | June 13, 2017 | Bruce |
| D795673 | August 29, 2017 | Rittman |
Patent History
Patent number: D823664
Type: Grant
Filed: Mar 15, 2017
Date of Patent: Jul 24, 2018
Inventor: David Workman (Carlsbad, CA)
Primary Examiner: Prabhakar G Deshmukh
Application Number: 29/596,119
Type: Grant
Filed: Mar 15, 2017
Date of Patent: Jul 24, 2018
Inventor: David Workman (Carlsbad, CA)
Primary Examiner: Prabhakar G Deshmukh
Application Number: 29/596,119
Classifications
Current U.S. Class:
D8/339;
D8/330