Patent US3865548A successfully refreshed from Google Patents.
Patent US4517172A successfully refreshed from Google Patents.
US4517172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plaque disclosing agent
Assignee: Vipont Pharmaceutical Inc
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Filing: 1983-12-29
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Granted: 1985-05-14
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Expires: 2003-12-29
Abstract
Abstract Salts of sanguinarine, either pure salts or a mixture of said salts precipitated from extracts of plants selected from the group consisting of Sanguinaria canadensis, Macleya cordata, Corydalis sevctvozii, C. ledebouni, Chelidonium majus, and mixtures thereon, are effective agents for disclosing plaque in the oral cavity under long wavelength ultraviolet light.
Inventors
- 👤 George L. Southard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:21
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61Q; A61Q11/00; A61K2800/00; A61K2800/40; A61K2800/42; A61K2800/43
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
76 words
A method for visualizing plaque formation in the oral cavity and rendering such plaque formation visible to the naked eye under long wavelength ultraviolet light by applying to the oral cavity a sanguinarine salt selected from the group consisting of sanguinarine chloride, sanguinarine nitrate, sanguinarine sulfate, and a mixture of said salts precipitated from extracts of plants selected from the group consisting of Sanguinaria canadensis, Macleaya cordata, Corydalis sevctvozii, C. ledebouni, Chelidonium majus, and mixtures thereof.
Claim 2
Independent Claim
76 words
A method for visualizing plaque formation in the oral cavity and rendering such plaque formation visible to the naked eye under long wavelength ultraviolet light by applying to the oral cavity a sanguinarine salt selected from the group consisting of sanguinarine chloride, sanguinarine nitrate, sanguinarine sulfate, and a mixture of said salts precipitated from extracts of plants selected from the group consisting of Sanguinaria canadensis, Macleaya cordata, Corydalis sevctvozii, C. ledebouni, Chelidonium majus, and mixtures thereof.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein the sanguinarine salt is sanguinarine chloride.
Claim 4
Dependent Claim
15 words
The method of claim 1 wherein the sanguinarine salt is contained in an oral rinse.
Claim 5
Dependent Claim
12 words
The method of claim 3 wherein the sanguinarine salt is sanguinarine chloride.
Claim 6
Dependent Claim
19 words
The method of claim 3 wherein the sanguinarine salt is a mixture of benzophenanthridine salts extracted from Sanguinaria canadensis.
Claim 7
Dependent Claim
17 words
The method of claim 1 wherein the sanguinarine salt is applied in the form of a toothpaste.
Claim 8
Dependent Claim
12 words
The method of claim 6 wherein the sanguinarine salt is sanguinarine chloride.
Claim 9
Dependent Claim
17 words
The method of claim 1 wherein the sanguinarine salt is applied in the form of a toothpowder.
References Cited (Backward Citations)
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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) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |