Patent US4339429A successfully refreshed from Google Patents.
US4339429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothpaste active against plaque comprising a copper compound and a plastic polishing agent
Assignee: Blendax GmbH
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Filing: 1981-04-09
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Granted: 1982-07-13
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Expires: 2001-04-09
Abstract
Abstract This invention relates to a novel toothpaste and more particularly, to a new toothpaste which includes a finely divided synthetic plastic material as a polishing agent and at least one copper compound. This toothpaste has proven effective against plaque formation on teeth but does not exhibit any of the untoward side effects of the prior art formulations such as discoloring.
Inventors
- 👤 Helmut Raaf
- 👤 Dieter Becker
- 👤 Franz Frosch
- 👤 Helmut Harth
- 👤 Helmar R. Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:53
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61K8/81; A61K8/8141; A61K8/8152; A61Q; A61Q11/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
39 words
An aqueous toothpaste composition for reducing or preventing the formation of dental plaque comprising at least one water-soluble copper compound and at least one polishing agent, the major part of said polishing agent being finely divided synthetic plastic material.
Claim 2
Dependent Claim
39 words
An aqueous toothpaste composition for reducing or preventing the formation of dental plaque comprising at least one water-soluble copper compound and at least one polishing agent, the major part of said polishing agent being finely divided synthetic plastic material.
Claim 3
Dependent Claim
19 words
A method of reducing the formation of dental plaque comprising applying the composition of claim 1 to the teeth.
Claim 4
Dependent Claim
21 words
A toothpaste composition as claimed in claim 1, wherein said polishing agent consists, at least partially, of finely divided polymethyl methacrylate.
Claim 5
Dependent Claim
22 words
A toothpaste composition as claimed in claim 1, wherein said polishing agent consists, at least partially, of a finely divided aminoplast resin.
Claim 6
Dependent Claim
40 words
A toothpaste composition as claimed in claim 1, wherein said synthetic material is selected from the group consisting of polymethyl methacrylate, aminoplast resin, polyvinyl chloride, polystyrene, polycarbonate, powdered nylon, urea-formaldehyde resins, melamine-formaldehyde resins, phenol-formaldehyde resins, and powdered cured epoxy resins.
Claim 7
Dependent Claim
29 words
A toothpaste composition as claimed in claim 1, further including one or more additional compatible polishing agents which constitute less than 50% of the total amount of polishing agent.
Claim 8
Dependent Claim
22 words
A toothpaste composition as claimed in claim 1, wherein said copper compound is at least one copper salt of an organic acid.
Claim 9
Dependent Claim
20 words
A toothpaste composition as claimed in claim 5, wherein said copper compound is at least one water-soluble inorganic copper salt.
Claim 10
Dependent Claim
52 words
A toothpaste composition as claimed in claim 7, wherein said copper compound is at least one compound selected from the group consisting of copper citrate, copper tartrate, copper pantothenate, copper lactate, copper malate, copper mandelate, copper sorbate, copper benzoate, copper salicylate, copper gluconate, copper phytate, copper glycerophosphate, copper glycinate and copper cinnamate.
Claim 11
Dependent Claim
33 words
A toothpaste composition as claimed in claim 1, wherein said copper compound is present in an amount of between about 0.001% and about 5% by weight, calculated on copper, of the total composition.
Claim 12
Dependent Claim
33 words
A toothpaste composition as claimed in claim 10, wherein said copper compound is present in an amount of between about 0.05 and about 0.5% by weight, calculated on copper, of the total composition.
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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) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |