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Click below for detailed party information:

Inventors

GORDON L. AMIDON GLEN D. LEESMAN LIZBETH B. SHERMAN

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TSRL, INC.

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PORT SYSTEMS, L.L.C., Assignor

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MULTI STAGE DRUG DELIVERY SYSTEM

08/251,731 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)

Filed May 31, 1994

Examiner RAJ BAWA

Class 424

Art Group 1502

Patent No. 5,387,421

Case Type Utility - 424/472000

Status Patented Case

Parent 07/826,253 Abandoned

Parent 07/648,968 Abandoned

Child 08/383,830 Patented

Child 08/946,515 Patented

Child 09/372,913 Patented

Last Updated: 4 years, 9 months ago

Date	#	Transaction
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08/251,731 | U.S. Patent Application

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