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Details for Patent: 4,576,604

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Summary for Patent: 4,576,604

Title: Osmotic system with instant drug availability
Abstract:An osmotic device is disclosed for delivering a beneficial agent. The device comprises a wall surrounding a compartment containing an agent, a passageway in the wall connecting the exterior of the device with the compartment, and (a) an agent in the wall or (b) an agent carried on the wall in the wall. The device delivers the agent from the compartment and the wall.
Inventor(s): Guittard; George V. (Cupertino, CA), Deters; Joseph C. (Mountain View, CA), Theeuwes; Felix (Los Altos, CA), Cortese; Richard (San Jose, CA)
Assignee: ALZA Corporation (Palo Alto, CA)
Application Number:06/472,333
Patent Claim Types:
see list of patent claims
Delivery; Device; Formulation;

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International Patent Family for Patent: 4,576,604

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria396056► Subscribe
Austria397179► Subscribe
AustriaA150889► Subscribe
AustriaA72784► Subscribe
Australia2306884► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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