USD787649SActiveUtility

Webless corrugated dual wall foundation drain

39
Assignee: DOUGLASS III CARL RAYMONDPriority: Jan 28, 2016Filed: Jan 28, 2016Granted: May 23, 2017
Est. expiryJan 28, 2036(~9.5 yrs left)· nominal 20-yr term from priority
Inventors:Carl Raymond Douglass, Iii
39
PatentIndex Score
3
Cited by
66
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a webless corrugated dual wall foundation drain, as shown and described.

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