IP Library › Granted Patent US 639,902
Granted Patent S1
US 639,902 · App. 29/362,442 · Granted Jun 14, 2011

Sealing structure for blocking an opening

Assignee: Caldwell Tanks, Inc.
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Quick Facts
Patent No.
US 639,902
App. No.
29/362,442
Granted
Jun 14, 2011
Kind
S1
Claims (1)

The ornamental design for a sealing structure for blocking an opening, as shown and described.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 1, 2022
From: CALDWELL TANKS, INC.
To: CALDWELL ENERGY COMPANY, LLC
Reel/Frame 059128/0216 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 30, 2010
From: AMMONS, MARK; SHEPHERD, DONALD W.
To: CALDWELL TANKS, INC.
Reel/Frame 024614/0169 →