US3980767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gel toothpastes
Assignee: Beecham Group PLC
•
Filing: 1974-10-15
•
Granted: 1976-09-14
•
Expires: 1994-10-15
Abstract
Abstract The invention relates to a toothpaste having a main body which is a transparent or translucent gel and secondary body of cleaning and polishing toothpaste contained within the main body in the form of a core or cores or stripe or stripes. The secondary body may contain materials, such as compounds of calcium or other polyvalent metals, which are normally incompatible with the transparent or translucent gel state of the main body.
Inventors
- 👤 James Philip Chown
- 👤 John Maxwell Healey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:18
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/042; A61K8/0216; A61K8/0233; A61K8/0237; A61Q; A61Q11/00; A61K2800/00; A61K2800/20; A61K2800/26; A61K2800/262
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
60 words
A toothpaste consisting essentially of a first transparent gel body substantially free of dental abrasive and a second gel body or bodies comprising a solid finely divided dentally acceptable abrasive, said second gel body or bodies being partially or wholly disposed within the first gel body, the first gel body and second gel body or bodies having similar rheological properties.
Claim 2
Dependent Claim
60 words
A toothpaste consisting essentially of a first transparent gel body substantially free of dental abrasive and a second gel body or bodies comprising a solid finely divided dentally acceptable abrasive, said second gel body or bodies being partially or wholly disposed within the first gel body, the first gel body and second gel body or bodies having similar rheological properties.
Claim 3
Dependent Claim
34 words
A toothpaste according to claim 1 wherein the second gel body or bodies comprising the abrasive is or are disposed as an optically contrasting stripe or stripes extending longitudinally of said first gel body.
Claim 4
Dependent Claim
33 words
A toothpaste according to claim 1 wherein the second gel body or bodies comprising the abrasive is or are disposed as an optically contrasting core or cores wholly within the first gel body.
Claim 5
Dependent Claim
27 words
A toothpaste according to claim 1 wherein the first gel body and the second gel body or bodies have substantially the same composition except for the abrasive.
Claim 6
Dependent Claim
22 words
A toothpaste according to claim 1 wherein the abrasive constitutes 15 to 75% by weight of the second gel body or bodies.
Claim 7
Dependent Claim
34 words
A toothpaste according to claim 1 wherein the first gel body constitutes about 99.8 to 90% by weight of the toothpaste and the second gel body constitutes about 0.2 to 10% by weight thereof.
Claim 8
Dependent Claim
20 words
A toothpaste according to claim 1 wherein each gel body contains an effective amount of sodium monofluorophosphate less than 1%.
References Cited (Backward Citations)
US3574823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-14 | 1980-03-15 | 1980-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-14 | 1984-03-15 | 1984-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-14 | 1988-03-15 | 1988-09-14 | $7700.00 | Window Closed / Lapsed |