Patent US2738303A successfully refreshed from Google Patents.
US2738303A
Expired / Lapsed
US
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Sympathomimetic preparation
Assignee: Smith Kline & French Laboratories Ltd
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Filing: 1952-07-18
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Granted: 1956-03-13
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Expires: 1972-07-18
Abstract
No abstract record available.
Inventors
- 👤 Rudolph H Blythe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:57
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/48; A61K9/50; A61K9/5084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A THERAPEUTIC PREPARATION IN DOSAGE UNIT FORM COMPRISING A CAPSULE CONTAINING AN INITIAL DOSAGE OF FROM 2 TO 10 MG. OF SYMPATHOMIMETIC SELECTED FROM THE GROUP CONSISTING OF A SALT OF RACEMIC AMPHETAMINE, A SALT OF DEXTRO-AMPHETAMINE, A SALT OF RACEMIC DESOXYEPHEDRINE AND A SALT OF DEXTRO-DESOXYEPHEDRINE TO PROVIDE A PREDETERMINED BODY LEVEL OF THE SELECTED SYMPATHOMIMETIC, A MINIMUM OF 50 PELLETS CONTAINING THE SELECTED SYMPATHOMIMETIC IN AN AMOUNT OF ABOUT 200 TO 400% BY WEIGHT OF SAID INITIAL DOSAGE AND HAVING INGESTIBLE COATINGS RESISTINGS BEING OF VARYING THICKNESS TO PROVIDE FOR THE GRADUAL RELEASE OF THE SELECTED SYMPATHOMIMETIC, SAID PREPARATION MAINTAINING A SUBSTANTIALLY CONSTANT BODY LEVEL OF THE SELECTED SYMPATHOMIMETIC OVER A PERIOD OF ABOUT TEN TO TWELVE HOURS.
Claim 2
Dependent Claim
120 words
A THERAPEUTIC PREPARATION IN DOSAGE UNIT FORM COMPRISING A CAPSULE CONTAINING AN INITIAL DOSAGE OF FROM 2 TO 10 MG. OF SYMPATHOMIMETIC SELECTED FROM THE GROUP CONSISTING OF A SALT OF RACEMIC AMPHETAMINE, A SALT OF DEXTRO-AMPHETAMINE, A SALT OF RACEMIC DESOXYEPHEDRINE AND A SALT OF DEXTRO-DESOXYEPHEDRINE TO PROVIDE A PREDETERMINED BODY LEVEL OF THE SELECTED SYMPATHOMIMETIC, A MINIMUM OF 50 PELLETS CONTAINING THE SELECTED SYMPATHOMIMETIC IN AN AMOUNT OF ABOUT 200 TO 400% BY WEIGHT OF SAID INITIAL DOSAGE AND HAVING INGESTIBLE COATINGS RESISTINGS BEING OF VARYING THICKNESS TO PROVIDE FOR THE GRADUAL RELEASE OF THE SELECTED SYMPATHOMIMETIC, SAID PREPARATION MAINTAINING A SUBSTANTIALLY CONSTANT BODY LEVEL OF THE SELECTED SYMPATHOMIMETIC OVER A PERIOD OF ABOUT TEN TO TWELVE HOURS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |