Chain door lock
Description
FIG. 1 is a perspective view of a chain door lock showing my new design in an unlatched condition;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a front elevational view thereof; and,
FIG. 7 is a perspective view of the chain door lock of FIGS. 1-6 shown in a latched condition, the broken-line showing a fragment of a door and frame being for illustrative purposes only and forming no part of the claimed design.
Claims
The ornamental design for a chain door lock, as shown and described.
Referenced Cited
U.S. Patent Documents
3275364 | September 1966 | Quinn |
D210157 | February 1968 | Gilbert |
D217423 | May 1970 | Thompson |
D226515 | March 1973 | Bobrowski |
D229163 | November 1973 | Bobrowski |
D229944 | January 1974 | Bobrowski |
3788107 | January 1974 | Lippman |
D233976 | December 1974 | Ridgway |
4105231 | August 8, 1978 | Huyssen |
4136898 | January 30, 1979 | Guenther |
4363227 | December 14, 1982 | Lo |
D286133 | October 14, 1986 | Dryburgh et al. |
4648641 | March 10, 1987 | Foster |
D320338 | October 1, 1991 | Mastrogiovanni |
5285666 | February 15, 1994 | Bartnicki |
5551739 | September 3, 1996 | Solis |
Patent History
Patent number: D511958
Type: Grant
Filed: Aug 30, 2004
Date of Patent: Nov 29, 2005
Inventor: Marco Mastrogiovanni (Seymour, CT)
Primary Examiner: Prabhakar Deshmukh
Attorney: The Patent Source
Application Number: 29/212,336
Type: Grant
Filed: Aug 30, 2004
Date of Patent: Nov 29, 2005
Inventor: Marco Mastrogiovanni (Seymour, CT)
Primary Examiner: Prabhakar Deshmukh
Attorney: The Patent Source
Application Number: 29/212,336
Classifications
Current U.S. Class:
D8/340;
D8/330