Patent US3723613A successfully refreshed from Google Patents.
US3723613A
Expired / Lapsed
US
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Dental plaque disclosing agent
Assignee: Individual
•
Filing: 1971-01-22
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Granted: 1973-03-27
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Expires: 1991-01-22
Abstract
Abstract Disclosing agent for use in control of dental plaque. The agents are compositions comprises of FDC Red No. 3 and FDC Blue No. 1; FDC Red No. 3 and FDC Green No. 3 and FDC Red No. 3 and Hercules Green Shade 3.
Inventors
- 👤 P Block
- 👤 J Derdivanis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:59
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/46; A61K8/466; A61K8/49; A61K8/4973; A61K8/498; G; G01; G01N; G01N31/00; G01N31/22; G01N33/00; G01N33/48; G01N33/50; G01N33/52; A61K2800/00; A61K2800/40; A61K2800/42; A61K2800/43
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
15 words
A process in accordance with claim 1 wherein said dye is FDC Green No. 3.
Claim 2
Dependent Claim
21 words
A process in accordance with claim 1 and further characterized by a minor amount of surfactant being included in said composition.
Claim 3
Dependent Claim
12 words
A process in accordance with claim 1 whereIn said composition is aqueous.
Claim 4
Dependent Claim
14 words
A process in accordance with claim 1 wherein said composition is in tablet form.
Claim 5
Dependent Claim
15 words
A process in accordance with claim 1 wherein said composition is in aerosol spray form.
Claim 6
Dependent Claim
257 words
In a process for the differential disclosure of dental plaque, the improvement comprising applying to the oral cavity a composition comprising for each part by weight of FDC Red No. 3, from about 1-2 parts by weight of a dye selected from the group consisting of FDC Blue No. 1, FDC Green No. 3 and Hercules Green Shade 3, said composition adapted to differentially stain areas of old, thick accumulations of dental plaque deep blue or purple and thin, recent deposits of dental plaque red, whereby effectively practiced plaque removal on a given tooth shows, and can be photographed, as either no stain pickup or thin deposits staining red, while certain areas on said tooth if consistently missed, will be considerably thicker and therefore stained blue, and on some teeth, an intermediate definite purple zone can be distinguished between the red and blue areas, said intermediate definite purple area tending to look more like blue plaque than red plaque, but the thickness of this purple plaque being less than that of blue plaque, close examination of said photographs revealing plaque colonies growing on a tooth surface displaying a central raised blue mass surrounded by a red and/or purple peripheral zone which was lower than the central mass, the red zone of adjacent plaque colonies tending to fuse forming red fields peppered with blue raised areas, while tooth surfaces not covered with plaque do not show the dye at all, said composition by color alone enabling the estimation of the third dimension of plaque, its age, and thickness.
Claim 7
Dependent Claim
12 words
A process in accordance with claim 7 wherein said composition is aqueous.
Claim 8
Dependent Claim
14 words
A process in accordance with claim 7 wherein said composition is in tablet form.
Claim 9
Dependent Claim
15 words
A process in accordance with claim 7 wherein said composition is in aerosol spray form.
References Cited (Backward Citations)
US2151495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |