US4193988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oral hygiene compositions
Assignee: Beecham Group PLC
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Filing: 1978-07-12
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Granted: 1980-03-18
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Expires: 1998-07-12
Abstract
Abstract Oral hygiene compositions particularly in the form of dentifrices, having an enhanced effect in reducing the solubility of dental enamel and which compositions are made up of sodium monofluorophosphate as anti-caries agent in potentiating combination with calcium glycerophosphate, the sodium monofluorophosphate and calcium glycerophosphate being present in the composition in the weight ratio of 10:1 to 3:1. The oral hygiene composition is in the form of a powder, paste, gel or liquid.
Inventors
- 👤 Geoffrey C. Forward
- 👤 nee Baylis Janet A. Gawthorpe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:31
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24; A61K8/30; A61K8/55; A61Q; A61Q11/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
66 words
In a method of enhancing reduction of solubility of dental enamel by an anti-cariogenic oral hygiene composition, the steps of preparing an anti-cariogenic oral hygiene composition having a potentiating combination of sodium monofluorophosphate and calcium glycerophosphate in a weight ratio of 10:1 to 3:1, the sodium monofluorophosphate being present in an amount of 0.08% to 7.6%, by weight, and contacting the dental enamel with the composition.
Claim 2
Dependent Claim
66 words
In a method of enhancing reduction of solubility of dental enamel by an anti-cariogenic oral hygiene composition, the steps of preparing an anti-cariogenic oral hygiene composition having a potentiating combination of sodium monofluorophosphate and calcium glycerophosphate in a weight ratio of 10:1 to 3:1, the sodium monofluorophosphate being present in an amount of 0.08% to 7.6%, by weight, and contacting the dental enamel with the composition.
Claim 3
Dependent Claim
23 words
A method according to claim 1 in which the sodium monofluorophosphate and calcium glycerophosphate are combined in the weight ratio of about 8:1.
Claim 4
Dependent Claim
19 words
A method according to claim 1 in which the composition is formulated in powder, paste, gel or liquid form.
Claim 5
Dependent Claim
37 words
A method according to claim 1 in which the sodium monofluorophosphate is present in the amount of 0.8% and the calcium glycerophosphate is present in the amount of 0.2%, both calculated on the weight of the composition.
Claim 6
Dependent Claim
35 words
A method according to claim 1 in which the composition is in the form of a dentifrice paste having therein 0.005 to 10%, by weight, of the composition of a water-soluble non-soap synthetic organic detergent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-18 | 1983-09-17 | 1984-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-18 | 1987-09-17 | 1988-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-18 | 1991-09-17 | 1992-03-18 | $7700.00 | Window Closed / Lapsed |