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The ornamental design for a par lamp heat sink, as shown and described.
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The broken line disclosure is for environmental purposes only and does not form a part of the claimed design.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Feb 29 2012 | ZENG, YICHONG | OSRAM SYLVANIA Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 027801 | /0559 | |
Feb 29 2012 | ZHANG, SHIYONG | OSRAM SYLVANIA Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 027801 | /0559 | |
Mar 02 2012 | Osram Sylvania Inc. | (assignment on the face of the patent) | / | |||
Jul 01 2016 | OSRAM SYLVANIA Inc | Ledvance LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 039421 | /0745 |
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