Door opening and closing device
Latest Abotic GmbH Patents:
Description
Claims
The ornamental design for a door opening and closing device, as shown and described.
Referenced Cited
U.S. Patent Documents
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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
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