Patent US2413897A successfully refreshed from Google Patents.
US4039653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Long-acting articles for oral delivery and process
Assignee: Defoney Bernman Mayes and Baron
•
Filing: 1975-07-21
•
Granted: 1977-08-02
•
Expires: 1995-07-21
Abstract
Abstract Long-acting capsules or tablets containing materials for masking odors of the oral cavity or for introducing medications into the oral cavity or for introducing medications into the oral cavity in human beings and other animals and comprising suitable pharmaceutically acceptable odor masking or medicament substances in encapsulated form and present in a capsule, tablet or other article of such size and shape or of such material as to allow the article to reside for prolonged periods of time of at least one hour in adjacent contact with the oral mucosa.
Inventors
- 👤 George F. DeFoney
- 👤 Donald S. Mayes
- 👤 Henry S. Brenman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:23
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/02; A61K8/0216; A61K8/11; A61K9/00; A61K9/0012; A61K9/0053; A61K9/006; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A tablet for releasing a relatively uniform quantity of a medication or odor-masking material into the oral cavity of a human being or other animal over a prolonged period of time, said tablet comprising: a. An elongated body; b. Said body having at least one face having a concave curvature and adapted to fit comfortably along the upper surface of the gums at the side of the mouth; c. Said tablet having a surface layer encompassing said tablet comprising principally pharmaceutically acceptable shellac having medicament or essential oil admixed therein to provide substantially immediate release of medicament or odor-masking material into the oral cavity; and d. Said tablet having an inner core comprising principally a material selected from the group consisting of ethylcellulose, carboxymethylcellulose, methylcellulose and hydroxypropylcellulose having medicament or essential oil admixed therein for providing substantially more prolonged release of medicament or odor-masking material into the oral cavity.
Claim 2
Dependent Claim
149 words
A tablet for releasing a relatively uniform quantity of a medication or odor-masking material into the oral cavity of a human being or other animal over a prolonged period of time, said tablet comprising: a. An elongated body; b. Said body having at least one face having a concave curvature and adapted to fit comfortably along the upper surface of the gums at the side of the mouth; c. Said tablet having a surface layer encompassing said tablet comprising principally pharmaceutically acceptable shellac having medicament or essential oil admixed therein to provide substantially immediate release of medicament or odor-masking material into the oral cavity; and d. Said tablet having an inner core comprising principally a material selected from the group consisting of ethylcellulose, carboxymethylcellulose, methylcellulose and hydroxypropylcellulose having medicament or essential oil admixed therein for providing substantially more prolonged release of medicament or odor-masking material into the oral cavity.
References Cited (Backward Citations)
US3053255A
Cited
US3137631A
Cited
US3339546A
Cited
US3429308A
Cited
US3444858A
Cited
US3516941A
Cited
US3495988A
Cited
US3598123A
Cited
US3797494A
Cited
US3731683A
Cited
US3742951A
Cited
US3742951B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |