US4915949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser with movable matrix comprising a plurality of tiny pills
Assignee: Alza Corp
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Filing: 1989-02-21
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Granted: 1990-04-10
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Expires: 2009-02-21
Abstract
Abstract A dispenser is disclosed for delivering tiny pills to an environment of use. The dispenser comprising a wall that surrounds an internal space comprising a first mean in the dispenser for changing from a dispenser state to an environment of use state on leaving the dispenser, tiny pills in the first means, and a second means in the dispenser for aiding in displacing the first means for the dispenser.
Inventors
- 👤 Patrick S.-L. Wong
- 👤 Felix Theeuwes
- 👤 Richard Cortese
- 👤 James B. Eckenhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:53
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0053; A61K9/0068; A61K9/0002; A61K9/0004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A method for administering a beneficial agent to an animal, wherein the method comprises: (a) admitting into the animal a dispenser comprising: (1) a lumen; (2) a wall that surrounds and defines the lumen; (3) pharmaceutically acceptable carrier in the lumen, which carrier substantially keeps its physical and chemical integrity while the carrier is in the lumen; (4) a plurality of tiny pills in the carrier, which tiny pills comprise: (i) a drug; and, (ii) a wall surrounding the drug; (5) means in the lumen for displacing the pharmaceutically acceptable carrier from the lumen; (6) a mouth in the dispenser that connects the lumen with the exterior of the dispenser; (b) letting fluid enter the dispenser to cause the means to displace the carrier through the mouth from the lumen; thereby, (c) administering the beneficial agent in the tiny pills to the animal to produce a beneficial effect over time.
Claim 2
Independent Claim
150 words
A method for administering a beneficial agent to an animal, wherein the method comprises: (a) admitting into the animal a dispenser comprising: (1) a lumen; (2) a wall that surrounds and defines the lumen; (3) pharmaceutically acceptable carrier in the lumen, which carrier substantially keeps its physical and chemical integrity while the carrier is in the lumen; (4) a plurality of tiny pills in the carrier, which tiny pills comprise: (i) a drug; and, (ii) a wall surrounding the drug; (5) means in the lumen for displacing the pharmaceutically acceptable carrier from the lumen; (6) a mouth in the dispenser that connects the lumen with the exterior of the dispenser; (b) letting fluid enter the dispenser to cause the means to displace the carrier through the mouth from the lumen; thereby, (c) administering the beneficial agent in the tiny pills to the animal to produce a beneficial effect over time.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-09 | 1993-10-09 | 1994-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-09 | 1997-10-09 | 1998-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-09 | 2001-10-09 | 2002-04-10 | $7700.00 | Window Closed / Lapsed |