IP Library Patent Application 09806745
Patent Application Utility PCT National Stage
App. No. 09/806,745 · Confirmation No. 4587

Novel bromine-containing 1,2-bis(phenyl)difluoromethanes and method of imparting flame retardancy to flammable materials

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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Code Description Pages PDF
2001-07-02 LET. Miscellaneous Incoming Letter 31 View
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Quick Facts
App. No.
09/806,745
Filed
2001-07-02
Granted
2002-02-19
Art Unit
1621
PTA
0 days