US4638823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoride-coated dental floss
Assignee: CALIFORNIA A CORP OF, University of, Regents of
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Filing: 1985-06-27
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Granted: 1987-01-27
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Expires: 2005-06-27
Abstract
Abstract A fluoride-coated dental floss which has enhanced bactericidal activity and a process for manufacturing the product, which includes dissolving a fluoride composition in a suitable solvent, homogenizing the mixture with a melted water-soluble wax, and applying the resulting composition to dental floss.
Inventors
- 👤 Michael G. Newman
- 👤 Fermin A. Carranza, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:46
CPC Classifications
A; A61; A61Q; A61Q11/00; A61C; A61C15/00; A61C15/04; A61C15/041; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
24 words
Dental floss made by dissolving a fluoride composition in water, adding the mixture to melted water-soluble wax, and applying the mixture to dental floss.
Claim 2
Dependent Claim
24 words
Dental floss made by dissolving a fluoride composition in water, adding the mixture to melted water-soluble wax, and applying the mixture to dental floss.
Claim 3
Dependent Claim
26 words
The article of claim 1 wherein the fluoride is present in concentrations ranging from about 1000 ppm F - to about 6000 ppm F - .
Claim 4
Dependent Claim
20 words
The article of claim 1 wherein the fluoride is present in a concentration of about 4000 ppm F - .
Claim 5
Dependent Claim
15 words
The article of claim 1 wherein the coated floss is sealed in an airtight container.
Claim 6
Dependent Claim
17 words
The article of claim 1 wherein the fluoride is stannous fluoride and the wax is polyethylene glycol.
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) | 1990-01-26 | 1990-07-28 | 1991-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-26 | 1994-07-28 | 1995-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-26 | 1998-07-28 | 1999-01-27 | $7700.00 | Window Closed / Lapsed |