US4689216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanguinarine dental compositions with hydrated silica
Assignee: Vipont Pharmaceutical Inc
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Filing: 1986-03-20
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Granted: 1987-08-25
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Expires: 2006-03-20
Abstract
Abstract Dentifrices containing sanguinarine of superior stability and increased uptake into dental plaque are attained by the inclusion of hydrated silica as an abrasive.
Inventors
- 👤 James A. Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:32
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/25; A61K8/24; A61K8/29; A61K8/30; A61K8/49; A61Q; A61Q11/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
37 words
A dentifrice having increased plaque uptake in sanguinarine chloride for enhanced gingivitis and periodontal control comprising: (a) sanguinarine chloride approximately 7.5% by weight and (b) a hydrated silica in amounts from about 2.0% to 99.97% by weight.
Claim 2
Dependent Claim
37 words
A dentifrice having increased plaque uptake in sanguinarine chloride for enhanced gingivitis and periodontal control comprising: (a) sanguinarine chloride approximately 7.5% by weight and (b) a hydrated silica in amounts from about 2.0% to 99.97% by weight.
Claim 3
Dependent Claim
23 words
The dentifrices of claim 1, including dentifrice additives which produce the metal ions Zn +2 , Sn +2 , or Sn +4 .
Claim 4
Dependent Claim
19 words
The dentifrice of claim 2, containing a gelling agent and being free from the inclusion of dicalcium phosphate abrasives.
Claim 5
Dependent Claim
12 words
A dentifrice as in claim 3, including TiO 2 as an opacifier.
Claim 6
Dependent Claim
24 words
A dentifrice as in claim 3, including dentifrice additives which produce the metal ions Zn +2 , Sn +2 , or Sn +4 .
Claim 7
Dependent Claim
24 words
A dentifrice as in claim 4, including dentifrice additives which produce the metal ions Zn +2 , Sn +2 , or Sn +4 .
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) | 1990-08-24 | 1991-02-23 | 1991-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-24 | 1995-02-23 | 1995-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-24 | 1999-02-23 | 1999-08-25 | $7700.00 | Window Closed / Lapsed |