IP Library › Patent Application 09786206
Patent Application Utility PCT National Stage
App. No. 09/786,206 · Confirmation No. 6269

Spirofluorenopyrans

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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 Code Description Pages PDF
2001-03-02 ABST Abstract 1 View
2001-03-02 LET. Miscellaneous Incoming Letter 28 View
2001-03-02 ABST Abstract 1 View
2001-03-02 LET. Miscellaneous Incoming Letter 28 View
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Quick Facts
App. No.
09/786,206
Filed
2001-03-02
Granted
2001-11-13
Art Unit
1626
PTA
0 days