IP Library › Granted Patent US 6,683,709
Granted Patent Utility
US 6,683,709 · Confirmation No. 7844

PHOTOCHROMIC PYRAN COMPOUNDS

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2003-12-05 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-02-07 TRNA Transmittal of New Application 1 View
2002-02-07 ADS Application Data Sheet 2 View
2002-02-07 SPEC Specification 15 View
2002-02-07 CLM Claims 5 View
2002-02-07 ABST Abstract 1 View
2002-02-07 DRW Drawings-only black and white line drawings 2 View
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Quick Facts
Patent No.
US 6,683,709
App. No.
10/067,529
Filed
2002-02-07
Granted
2004-01-27
Pub. No.
US20020169315A1
Art Unit
1624
PTA
0 days