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Generated: April 27, 2017

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Details for Patent: 5,829,434

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Summary for Patent: 5,829,434

Title: Inhaler for powdered medications
Abstract:A powder inhaler comprising: a powder housing for holding a supply of powdered material to be dispensed and a metering plate for holding a metered amount of said powdered material, the metering plate being alternately positionable below said supply of powdered material or within an inhalation conduit, by means of a bi-directional, angle-limited relative rotation about a common central axis; a counter for providing a visual count of the number of doses of said powdered material that have been dispensed or remain to be dispensed in response to the relative rotation, the counter including: a continuous counter ring and a coaxially mounted intermittent counter ring, both rings being mounted on a base in surrounding relation to a retaining post, being rotatable about the common central axis and having counting indicia thereon for displaying said visual count; and a display means through which at least one of the counting indicia is displayed to indicate a count corresponding to a number of doses of powdered material that have been dispensed or remain to be dispensed.
Inventor(s): Ambrosio; Thomas J. (Somerville, NJ), Ashley; Charles R. (Clinton, NJ), Bilanin; Alan J. (Princeton, NJ), Huck; Charles M. (Gladstone, NJ), Kaufman; Andrew E. (Robbinsville, NJ), Kenyon; David J. (Morristown, NJ), Manthena; Srinivas (Bricktown, NJ), Sochon; Henry R. (Clifton, NJ), Wilkinson; Ken (Round Lake, IL), Yang; Tsong-Toh (Warren, NJ)
Assignee: Schering Corporation (Kenilworth, NJ)
Application Number:08/446,804
Patent Claim Types:
see list of patent claims
Delivery; Use; Device;

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Foreign Priority and PCT Information for Patent: 5,829,434

PCT Information
PCT FiledDecember 16, 1993PCT Application Number:PCT/US93/12076
PCT Publication Date:July 07, 1994PCT Publication Number: WO94/14492

International Patent Family for Patent: 5,829,434

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
China1091321► Subscribe
China1120024► Subscribe
Czech Republic9501535► Subscribe
Czech Republic287848► Subscribe
Germany69323897► 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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