US4590061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antimicrobial plaque disclosing agent
Assignee: Vipont Pharmaceutical Inc
•
Filing: 1985-05-10
•
Granted: 1986-05-20
•
Expires: 2005-05-10
Abstract
Abstract Benzo-c-phenanthridine salts, either pure salts or salts precipitated form extracts of plants selected form the group consisting of Sanguinaria canadensis, Macleaya cordata, Corydalis sevctvozii, C. ledebouni, Chelidonium majus, and mixtures thereof, 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
2026-11-02 14:49
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: 13
Claim 1
Independent Claim
70 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 without employing fluorescent or other disclosing dyes or stains by first applying to the teeth, with plaque formation, in the oral cavity a non-toxic benzo-c-phenanthridine salt and then exposing the teeth to longwave UV light, in order to thereby disclose the plaque on the teeth.
Claim 2
Independent Claim
70 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 without employing fluorescent or other disclosing dyes or stains by first applying to the teeth, with plaque formation, in the oral cavity a non-toxic benzo-c-phenanthridine salt and then exposing the teeth to longwave UV light, in order to thereby disclose the plaque on the teeth.
Claim 3
Dependent Claim
53 words
The method of claim 1 wherein the benzo-c-phenanthridine salt is selected form the group consisting of non-toxic salts of sanguinarine, sanguilutine, sanguirubine, chelerythrine, chelilutine, protopine, hemochelidinonene, and mixtures of salts from extracts of plants selected form the group consisting of Sanguinaria canadensis, Macleaya cordata, Corydalis sevctvozii, C. ledebouni, Chelidonium majus, and mixtures thereof.
Claim 4
Dependent Claim
11 words
The method of claim 2 wherein the salt is sanguinarine chloride.
Claim 5
Dependent Claim
17 words
The method of claim 2 wherein the salt is a mixture of sanguinarine chloride and chelerythrine chloride.
Claim 6
Dependent Claim
15 words
The method of claim 1 wherein the benzo-c-phenanthridine salt is contained in an oral rinse.
Claim 7
Dependent Claim
18 words
The method of claim 1 wherein the salt is a mixture of benzo-c-phenanthridine salts extracted form Sanguinaria canadensis.
Claim 8
Dependent Claim
17 words
The method of claim 1 wherein the benzo-c-phenanthridine salt is applied in the form of a toothpaste.
Claim 9
Dependent Claim
11 words
The method of claim 7 wherein the salt is sanguinarine chloride.
Claim 10
Dependent Claim
17 words
The method of claim 7 wherein the salt is a mixture of sanguinarine chloride and chelerythrine chloride.
Claim 11
Dependent Claim
18 words
The method of claim 1 wherein the benzo-c-phenanthridine salt is applied in the form of a tooth powder.
Claim 12
Dependent Claim
11 words
The method of claim 11 wherein the salt is sanguinarine chloride.
Claim 13
Dependent Claim
17 words
The method of claim 11 wherein the salt is a mixture of sanguinarine chloride and chelerythrine chloride.
References Cited (Backward Citations)
US209331A
Cited
US2344830A
Cited
US3309274A
Cited
US4145412A
Cited
DE2907406A1
Cited
GB2042336A
Cited
US4335110A
Cited
BE888843A
Cited
US4406881A
Cited
US4517172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |