Patent US3502498A successfully refreshed from Google Patents.
US4647450A
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Chewing gum compositions containing magnesium trisilicate absorbates
Assignee: Warner Lambert Co LLC
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Filing: 1985-12-19
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Granted: 1987-03-03
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Expires: 2005-12-19
Abstract
Abstract A chewing gum composition containing a magnesium trisilicate having a surface area of at least 400 m 2 /g and having a flake-like structure with multiple interstitial spaces, and having adsorbed therein from about 1% to about 20% by weight of the adsorbate of a medicament drug. Such compositions may be in the form of sticks, slabs, chunks, balls, ropes, shredded tablets and/or center filled.
Inventors
- 👤 David Peters
- 👤 John Denick, Jr.
- 👤 Anil K. Talwar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:46
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/14; A61K9/141; A61K9/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A chewing gum composition which comprises a chewing gum and from about 1% to about 60% by weight of the final composition of a medicament absorbate containing magnesium trisilicate having a surface area of at least 400 m 2 /g and having a flake-like structure with multiple interstitial spaces and from about 1% to about 20% by weight of the absorbate of a medicament drug wherein the medicament drug is selected from the group consisting of antitusussives, antihistamines, decongestants, alkaloids, antinauseants, antiasmatics, analgesics, nutritional supplements, laxatives, appetite suppressants and mixtures thereof.
Claim 2
Dependent Claim
91 words
A chewing gum composition which comprises a chewing gum and from about 1% to about 60% by weight of the final composition of a medicament absorbate containing magnesium trisilicate having a surface area of at least 400 m 2 /g and having a flake-like structure with multiple interstitial spaces and from about 1% to about 20% by weight of the absorbate of a medicament drug wherein the medicament drug is selected from the group consisting of antitusussives, antihistamines, decongestants, alkaloids, antinauseants, antiasmatics, analgesics, nutritional supplements, laxatives, appetite suppressants and mixtures thereof.
References Cited (Backward Citations)
US2881113A
Cited
US3352752A
Cited
US3337402A
Cited
US3432593A
Cited
US3449266A
Cited
US3567819A
Cited
US3636200A
Cited
US4029797A
Cited
GB1578541A
Cited
US4401674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |