US4394371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dentrifrice preparation
Assignee: Colgate Palmolive Co
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Filing: 1982-04-07
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Granted: 1983-07-19
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Expires: 2002-04-07
Abstract
Abstract Preparations containing alkali metal monofluorophosphate anticaries material, alkaline earth metal orthophosphate polishing material and water soluble alkali metal trimetaphosphate are disclosed which can be used in unlined aluminium tubes by virtue of the presence of defined amounts of phytic acid.
Inventors
- 👤 Giacinto G. Barberio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:40
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/69; A61K8/19; A61K8/24; A61K8/55; A61Q; A61Q11/00; A61K2800/00; A61K2800/40; A61K2800/52; A61K2800/526
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
71 words
A dentifrice preparation in an unlined aluminium tube containing a dentifrice vehicle and dispersed therein a non-toxic anticaries amount of a water-soluble alkali metal monofluorophosphate, 20-75% by weight of dentally acceptable alkaline earth metal orthosphosphate polishing material, 0.01-20% by weight of a water-soluble sodium trimetaphosphate and an amount of at least 0.4% by weight phytic acid effective to reduce attack by the dentifrice on the aluminium of an unlined aluminium tube.
Claim 2
Dependent Claim
71 words
A dentifrice preparation in an unlined aluminium tube containing a dentifrice vehicle and dispersed therein a non-toxic anticaries amount of a water-soluble alkali metal monofluorophosphate, 20-75% by weight of dentally acceptable alkaline earth metal orthosphosphate polishing material, 0.01-20% by weight of a water-soluble sodium trimetaphosphate and an amount of at least 0.4% by weight phytic acid effective to reduce attack by the dentifrice on the aluminium of an unlined aluminium tube.
Claim 3
Dependent Claim
50 words
A dentifrice preparation containing a dentifrice vehicle and dispersed therein a non-toxic anticaries amount of a water-soluble alkali metal monofluorophosphate, 20-75% by weight of dentally acceptable alkaline earth metal orthosphosphate polishing material, 0.01-20% by weight of a water-soluble alkali metal trimetaphosphate and at least 0.4% by weight of phytic acid.
Claim 4
Dependent Claim
50 words
A dentifrice preparation containing a dentifrice vehicle and dispersed therein a non-toxic anticaries amount of a water-soluble alkali metal monofluorophosphate, 20-75% by weight of dentally acceptable alkaline earth metal orthosphosphate polishing material, 0.01-20% by weight of a water-soluble alkali metal trimetaphosphate and at least 0.4% by weight of phytic acid.
Claim 5
Dependent Claim
35 words
A dentifrice preparation as claimed in claim 2 which contains 0.05-1% by weight of sodium monofluorophosphate, 25-60% by weight of dicalcium orthophosphate, 0.5-5% by weight of sodium trimetaphosphate and 0.4-10% by weight of phytic acid.
Claim 6
Dependent Claim
18 words
A dentifrice preparation as claimed in claim 3 in which the said dicalcium orthophosphate is dicalcium orthophosphate dihydrate.
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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) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |