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METHOD FOR MAKING A MULTI-STAGE DRUG DELIVERY SYSTEM

08/946,515 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed Oct. 7, 1997
Examiner RAJ BAWA
Class 424
Art Group 1615
Patent No. 5,976,571
Case Type Utility - 424/472000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 08/383,830 Patented
Parent 08/251,731 Patented
Parent 07/826,253 Abandoned
Parent 07/648,968 Abandoned
Child 09/372,913 Patented
Child PCT/US98/19953 Published
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Last Updated: 2 years, 5 months ago
Date # Transaction