USD684840SActiveUtility

Door opening and closing device

12
Assignee: MANSEDER FRIEDRICH NIKOLAUSPriority: Feb 27, 2012Filed: Feb 27, 2012Granted: Jun 25, 2013
Est. expiryFeb 27, 2032(~5.6 yrs left)· nominal 20-yr term from priority
Inventors:Friedrich Nikolaus Manseder
12
PatentIndex Score
2
Cited by
13
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a door opening and closing device, as shown and described.

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