Patent US4547362A successfully refreshed from Google Patents.
US4547362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sodium-bicarbonate-containing tooth powder
Assignee: Church and Dwight Co Inc
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Filing: 1984-07-09
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Granted: 1985-10-15
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Expires: 2004-07-09
Abstract
Abstract A tooth powder comprising at least about 50% by weight of sodium bicarbonate particles, wherein said sodium bicarbonate particles have a median particle size in the range of about 74 to 210 microns, flavoring and sweeteners. Fluoridating agents and second abrasives may also be included in the tooth powder.
Inventors
- 👤 Anthony Winston
- 👤 Anthony Ansaldi
- 👤 Norman Usen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:05
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
64 words
A dentifrice composition comprising at least 50% by weight of sodium bicarbonate particles as a dental abrasive material, said sodium bicarbonate particles having a median particle size within the range of 74 to 210 microns; 0.05 to 3.0% by weight of a flavoring agent, and 0.20% to 3.0% by weight of a sweetener, said dentifrice composition being in the form of a tooth powder.
Claim 2
Dependent Claim
64 words
A dentifrice composition comprising at least 50% by weight of sodium bicarbonate particles as a dental abrasive material, said sodium bicarbonate particles having a median particle size within the range of 74 to 210 microns; 0.05 to 3.0% by weight of a flavoring agent, and 0.20% to 3.0% by weight of a sweetener, said dentifrice composition being in the form of a tooth powder.
Claim 3
Dependent Claim
25 words
The dentifrice composition of claim 1, wherein the median particle size of said sodium bicarbonate particles is within the range of 74 to 149 microns.
Claim 4
Dependent Claim
37 words
The dentifrice composition of claim 1, comprising between 75% and 98% by weight of the sodium bicarbonate abrasive, and wherein the sodium bicarbonate particles have a median particle size within the range of 74 to 149 microns.
Claim 5
Independent Claim
45 words
A method of cleaning the teeth and gums, comprising applying a tooth powder to said teeth and gums, said tooth powder comprising at least about 50% by weight of sodium bicarbonate particles having a median particle size within the range of 74 to 210 microns.
Claim 6
Independent Claim
45 words
A method of cleaning the teeth and gums, comprising applying a tooth powder to said teeth and gums, said tooth powder comprising at least about 50% by weight of sodium bicarbonate particles having a median particle size within the range of 74 to 210 microns.
Claim 7
Dependent Claim
29 words
The method of claim 4, wherein the tooth powder further comprises 0.05 to 3.0% by weight of a flavoring agent and 0.20 to 3.0% by weight of a sweetener.
Claim 8
Dependent Claim
38 words
The method of claim 4, wherein the tooth powder comprises between 75% and 98% by weight of the sodium bicarbonate abrasive, and wherein the sodium bicarbonate particles have a median particle size within the range of 74-149 microns.
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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) | 1988-10-14 | 1989-04-15 | 1989-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-14 | 1993-04-15 | 1993-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-14 | 1997-04-15 | 1997-10-15 | $7700.00 | Window Closed / Lapsed |