US4565691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oral hygiene compositions
Assignee: Beecham Group PLC
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Filing: 1983-04-18
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Granted: 1986-01-21
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Expires: 2003-04-18
Abstract
Abstract An oral hygiene composition comprises from 0.01 to 2.0% by weight of the composition of a water soluble ionic fluoride, an ionic abrasive material containing metal cations capable of forming a water insoluble fluoride, and between 0.01% and 9% by weight of the composition of a water soluble ionic agent containing the anionic counter ions of the ionic abrasive together with metal cations capable of forming a water soluble fluoride. The composition is useful in reducing or preventing the inactivation of a water soluble ionic fluoride by an ionic abrasive material.
Inventors
- 👤 Robert J. Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:06
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61Q; A61Q11/00; A61K8/21; A61K8/24
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
96 words
An oral hygiene composition, comprising from 0.01 to 2.0% by weight of the composition of a water soluble fluoride source consisting of an ionic fluoride or an ionic fluoride admixed with an ionic monofluorophosphate, from 10 to 99% by weight of the composition of a water insoluble ionic abrasive material containing metal cations capable of forming a water insoluble fluoride, and between 0.01% and 9% by weight of the composition of a water soluble ionic agent containing the anionic counter ions of the ionic abrasive together with metal cations capable of forming a water soluble fluoride.
Claim 2
Dependent Claim
96 words
An oral hygiene composition, comprising from 0.01 to 2.0% by weight of the composition of a water soluble fluoride source consisting of an ionic fluoride or an ionic fluoride admixed with an ionic monofluorophosphate, from 10 to 99% by weight of the composition of a water insoluble ionic abrasive material containing metal cations capable of forming a water insoluble fluoride, and between 0.01% and 9% by weight of the composition of a water soluble ionic agent containing the anionic counter ions of the ionic abrasive together with metal cations capable of forming a water soluble fluoride.
Claim 3
Dependent Claim
30 words
A composition according to claim 1, in which the fluoride source consists of an alkali metal fluoride or a mixture of an alkali metal fluoride and an alkali metal monofluorophosphate.
Claim 4
Dependent Claim
28 words
A composition according to claim 1, in which the water soluble ionic agent is present in an amount of from 0.5% to 6% by weight of the composition.
Claim 5
Dependent Claim
12 words
A composition according to claim 1, in the form of a dentifrice.
Claim 6
Dependent Claim
66 words
An oral hygiene composition comprising from 0.01 to 2.0% by weight of the composition of a water soluble fluoride source consisting of an ionic fluoride or an ionic fluoride admixed with an ionic monofluorophosphate, from 10 to 99% by weight of the composition of calcium carbonate and between 0.01% and 9% by weight of the composition of an alkali metal carbonate or bicarbonate or mixture thereof.
Claim 7
Dependent Claim
66 words
An oral hygiene composition comprising from 0.01 to 2.0% by weight of the composition of a water soluble fluoride source consisting of an ionic fluoride or an ionic fluoride admixed with an ionic monofluorophosphate, from 10 to 99% by weight of the composition of calcium carbonate and between 0.01% and 9% by weight of the composition of an alkali metal carbonate or bicarbonate or mixture thereof.
Claim 8
Dependent Claim
30 words
A composition according to claim 5, in which the fluoride source consists of an alkali metal fluoride or a mixture of an alkali metal fluoride and an alkali metal monofluorophosphate.
Claim 9
Dependent Claim
29 words
A composition according to claim 5, in which the alkali metal carbonate or bicarbonate is present in an amount of from 0.5% to 6% by weight of the composition.
Claim 10
Dependent Claim
12 words
A composition according to claim 5, in the form of a dentifrice.
References Cited (Backward Citations)
GB1222197A
Cited
US3937804A
Cited
US4048300A
Cited
US4108980A
Cited
US4174387A
Cited
GB2068727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-20 | 1989-07-22 | 1990-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-20 | 1993-07-22 | 1994-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-20 | 1997-07-22 | 1998-01-21 | $7700.00 | Window Closed / Lapsed |