| 
 | The ornamental design for a double acting door lift and closing device, substantially as shown. | |||||||||||||||||
FIG. 1 is a perspective view of a double acting door lift and closing device embodying the present design;
FIG. 2 is a plan view of the device, showing the same side as that shown in FIG. 1;
FIG. 3 is an elevational view of the side opposite that shown in FIG. 1;
FIG. 4 is a plan view of the side opposite that shown in FIGS. 1 and 2;
FIG. 5 is an elevational view of the end opposite that seen in FIG. 1;
FIG. 6 is an elevational view of the same end as that shown in FIG. 1 ; and
FIG. 7 is a cross sectional view taken on line 7--7 of FIG. 3.
| Patent | Priority | Assignee | Title | 
| 7497490, | Jun 15 2004 | SUGATSUNE KOGYO CO , LTD | Telescopic stay | 
| D250989, | Jan 10 1977 | Excel Industries, Inc. | Strut | 
| D644084, | Sep 24 2010 | Peter, Canavan | Door lifter tool | 
| D666073, | Apr 15 2011 | TOPP S.p.A. | Electric door opener | 
| Patent | Priority | Assignee | Title | 
| 3038569, | |||
| 3287050, | |||
| 3480249, | |||
| 3608940, | |||
| 3917331, | |||
| DD384,188, | 
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Nov 13 1975 | Elkhart Rivet & Register Co., Inc. | (assignment on the face of the patent) | / | 
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