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The ornamental design for a rounded corner mattress foundation, as shown and described.
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The broken lines illustrate the claim in use and form no part of the claimed design.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Aug 18 2015 | R&T Lumber Sales, LLC | (assignment on the face of the patent) | ||||
Nov 12 2015 | HARTLEY, RICKY L | R & T LUMBER SALES, LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 037043 | 0149 | |
Dec 31 2022 | R & T LUMBER SALES, LLC | SE BOARD NC, LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 062359 | 0553 |
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