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Details for Patent: 5,899,880

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Summary for Patent: 5,899,880

Title: Needleless syringe using supersonic gas flow for particle delivery
Abstract:A needleless syringe having a membrane which is ruptured by gas pressure to generate a supersonic gas flow in which particles containing a therapeutic agent are injected.
Inventor(s): Bellhouse; Brian J. (Islip, GB), Sarphie; David F. (Oxford, GB), Greenford; John C. (Abingdon, GB)
Assignee: Powderject Research Limited (Oxford, GB)
Application Number:08/483,734
Patent Claim Types:
see list of patent claims
Delivery; Device; Dosage form;

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International Patent Family for Patent: 5,899,880

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Hungary9802714► subscribe
Hungary216308► subscribe
HungaryT73516► 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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