US3028307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre-dried granulation and production of sublingual compressed organic nitrate tablets with selected solubilizing agents
Assignee: Warner Lambert Co LLC
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Filing: 1959-05-27
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Granted: 1962-04-03
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Expires: 1979-05-27
Abstract
No abstract record available.
Inventors
- 👤 Fred C Ninger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:47
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/2004; A61K9/2013; A61K31/00; A61K31/21; A61K9/0012; A61K9/0053; A61K9/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A METHOD OF PRODUCING A RAPIDLY DISINTEGRATING SUBLINGUAL TABLET CONSISTING OF MIXING AN ORGANIC NITRATE SELECTED FROM THE GROUP CONSISTING OF PENTAERYTHRITOL TETRANITRATE, GLYCERYL TRINITRATE AN MIXTURES THEREOF, AN INER PHARMACEUTICAL DILUENT AND A SOLUBILIZING AGENT SELECTED FROM THE GROUP CONSISTING OF UREA, BETAINE SALTS AND A-AMINO LOWER ALKYL CARBOXYLIC ACIDS HAVING 2 TO 6 CARBON ATOMS IN THE PRESENCE OF A VOLATILE LIQUID, DRYING SAID MIXTURE, GRANULATING THE DRIED MIXTURE AND COMPRESSING THE GRANULATION INTO TABLETS.
Claim 2
Independent Claim
77 words
A METHOD OF PRODUCING A RAPIDLY DISINTEGRATING SUBLINGUAL TABLET CONSISTING OF MIXING AN ORGANIC NITRATE SELECTED FROM THE GROUP CONSISTING OF PENTAERYTHRITOL TETRANITRATE, GLYCERYL TRINITRATE AN MIXTURES THEREOF, AN INER PHARMACEUTICAL DILUENT AND A SOLUBILIZING AGENT SELECTED FROM THE GROUP CONSISTING OF UREA, BETAINE SALTS AND A-AMINO LOWER ALKYL CARBOXYLIC ACIDS HAVING 2 TO 6 CARBON ATOMS IN THE PRESENCE OF A VOLATILE LIQUID, DRYING SAID MIXTURE, GRANULATING THE DRIED MIXTURE AND COMPRESSING THE GRANULATION INTO TABLETS.
References Cited (Backward Citations)
US2963402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |