US4160022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothpaste
Assignee: Colgate Palmolive Co
•
Filing: 1978-03-30
•
Granted: 1979-07-03
•
Expires: 1998-03-30
Abstract
Abstract Toothpaste containing sodium bicarbonate as the principal abrasive and a lesser amount of another compatible abrasive. Examples of these are chalk, silica, alumina, zirconium silicate or sodium aluminosilicate, or a mixture thereof, said other abrasive constituting at least about 3% of the toothpaste.
Inventors
- 👤 Thomas J. Delaney
- 👤 William G. Pierson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:29
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
142 words
A dental cream in an unlined aluminum tube having an aqueous vehicle and containing an abrasive content comprising (1) at least about 20% sodium bicarbonate and (2) over 1% of at least one water-insoluble dental abrasive material compatible and which does not tend to form gas on storage with said bicarbonate in the dental cream and said tube which is selected from the group consisting of silica, alumina, calcined alumina, silicates and carbonates non-reactive with the bicarbonate and (3) about 0.01% to 1% fluorine selected from the group of water-soluble fluorine salts consisting of sodium, potassium, ammonium, lithium and amine fluorides; monofluorophosphates salts; complex water-soluble fluorine salts selected from the group consisting of fluorosilicate, fluorozirconate, fluorogermanate and organic fluorides selected from the group consisting of mono-, di- and triethanolamine hydrofluoride and having a bicarbonate to water ratio of about 3:1 to 6:1.
Claim 2
Dependent Claim
142 words
A dental cream in an unlined aluminum tube having an aqueous vehicle and containing an abrasive content comprising (1) at least about 20% sodium bicarbonate and (2) over 1% of at least one water-insoluble dental abrasive material compatible and which does not tend to form gas on storage with said bicarbonate in the dental cream and said tube which is selected from the group consisting of silica, alumina, calcined alumina, silicates and carbonates non-reactive with the bicarbonate and (3) about 0.01% to 1% fluorine selected from the group of water-soluble fluorine salts consisting of sodium, potassium, ammonium, lithium and amine fluorides; monofluorophosphates salts; complex water-soluble fluorine salts selected from the group consisting of fluorosilicate, fluorozirconate, fluorogermanate and organic fluorides selected from the group consisting of mono-, di- and triethanolamine hydrofluoride and having a bicarbonate to water ratio of about 3:1 to 6:1.
Claim 3
Dependent Claim
24 words
A dental cream as defined in claim 1 wherein component (2) is present in amount of at least about 3% of the dental cream.
Claim 4
Dependent Claim
24 words
A dental cream as defined in claim 2 wherein the total abrasive content is about 25-60% and is dispersed in an aqueous humectant medium.
Claim 5
Dependent Claim
16 words
A dental cream as defined in claim 3 wherein component (2) is flat flakes of alpha-alumina.
Claim 6
Dependent Claim
32 words
A dental cream as defined in claim 1 which has a granular textured appearance comprising a substantially dispersed non-crystalline appearing granulate of macroscopic crystalline bicarbonate granules in an otherwise smooth continuous matrix.
Claim 7
Dependent Claim
11 words
A dental cream as in claim 1 further including a humectant.
Claim 8
Dependent Claim
13 words
A dental cream as in claim 1 further including a non-soap synthetic detergent.
Claim 9
Dependent Claim
19 words
A dental cream as defined in claim 1 including sodium lauryl sulfate and a higher fatty acid sarcosinate surfactant.
Claim 10
Dependent Claim
14 words
A dental cream as defined in claim 4 wherein component (3) is sodium fluoride.
Claim 11
Dependent Claim
13 words
A dental cream as defined in claim 4 wherein component (3) is monofluorophosphate.
Claim 12
Dependent Claim
18 words
A dental cream as defined in claim 1 further including at least about 0-5% of a suitable oil.
Claim 13
Dependent Claim
19 words
A dental cream as defined in claim 1 wherein said sodium bicarbonate is primarily in the undissolved solid state.
Claim 14
Dependent Claim
25 words
A dental cream as in claim 1 wherein a major proportion of said sodium bicarbonate is finely divided and passes through a No. 325 sieve.
References Cited (Backward Citations)
US3119743A
Cited
GB1132830A
Cited
US3678155A
Cited
US3935304A
Cited
US3978205A
Cited
US4034076A
Cited
US4046872A
Cited
US4075317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-07-02 | 1983-01-01 | 1983-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-02 | 1987-01-01 | 1987-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-02 | 1991-01-01 | 1991-07-03 | $7700.00 | Window Closed / Lapsed |