Patent
   D244004
Priority
Nov 13 1975
Filed
Nov 13 1975
Issued
Apr 12 1977
Expiry
Apr 12 1991
Assg.orig
Entity
unknown
4
6
n/a
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.

Searer, Glenn V.

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,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Nov 13 1975Elkhart Rivet & Register Co., Inc.(assignment on the face of the patent)
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