USD640441SActiveUtility

Door lifting device

13
Assignee: CAIRNS LAURENCE CECIL YATESPriority: Jun 23, 2010Filed: Jun 23, 2010Granted: Jun 21, 2011
Est. expiryJun 23, 2030(~3.9 yrs left)· nominal 20-yr term from priority
Inventors:Laurence Cecil Yates Cairns
13
PatentIndex Score
2
Cited by
11
References
1
Claims

Claims

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

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