Patent Assignment Details
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Reel/Frame: | 008903/0315 | |
| Pages: | 3 |
| | Recorded: | 12/15/1997 | | |
Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
1
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Patent #:
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Issue Dt:
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10/07/2003
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Application #:
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08990889
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Filing Dt:
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12/15/1997
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Title:
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PHOTOCHROMIC 6-ARYL SUBSTITUTED 3H-NAPHTHO(2,1-B)PYRANS
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Assignee
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INTELLECTUAL PROPERTY - LAW DEPARTMENT |
ONE PPG PLACE |
PITTSBURGH, PENNSYLVANIA 15272 |
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Correspondence name and address
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PPG INDUSTRIES, INC.
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ATTN: IRWIN M. STEIN, ESQ.
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INTELLECTUAL PROPERTY - LAW DEPT.
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ONE PPG PLACE
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PITTSBURGH, PA 15272
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