Door opening and closing device

- Abotic GmbH
Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front and bottom perspective view showing the door opening and closing device of the new invention,

FIG. 2 is a rear elevation view thereof,

FIG. 3 is a front elevation view thereof,

FIG. 4 is a top plan view thereof,

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a right side view thereof; the left side view is a mirror image of the left side view.

Claims

The ornamental design for a door opening and closing device, as shown and described.

Referenced Cited
U.S. Patent Documents
3777423 December 1973 Coulter et al.
3905063 September 1975 Coulter et al.
4086681 May 2, 1978 Nakanishi
4231134 November 4, 1980 Schoker
D261099 October 6, 1981 Russell
D428793 August 1, 2000 Bruno
D429992 August 29, 2000 Ginzel et al.
D438088 February 27, 2001 Tomlinson
6421876 July 23, 2002 Ginzel et al.
D493352 July 27, 2004 Homberg
D578862 October 21, 2008 James et al.
D635435 April 5, 2011 Yamaguchi
D639136 June 7, 2011 Yamaguchi et al.
Patent History
Patent number: D684840
Type: Grant
Filed: Feb 27, 2012
Date of Patent: Jun 25, 2013
Assignee: Abotic GmbH (Vienna)
Inventor: Friedrich Nikolaus Manseder (Vienna)
Primary Examiner: Prabhakar Deshmukh
Application Number: 29/414,254
Classifications
Current U.S. Class: D8/330