US3624199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental cream
Assignee: Individual
•
Filing: 1969-04-21
•
Granted: 1971-11-30
•
Expires: 1989-04-21
Abstract
Abstract Dental cream containing hydrated alumina, calcium carbonate or insoluble alkali metal metaphosphate as polishing agent, benzyl alcohol as desensitizing agent and zinc oxide. The cream does not swell or corrode unlined aluminum tubes when incorporated therein.
Inventors
- 👤 James Norfleet
- 👤 Francis D Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:29
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24; A61K8/27; A61K8/30; A61K8/33; A61K8/34; A61Q; A61Q11/00; A61K2800/00; A61K2800/40; A61K2800/52; A61K2800/526
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
19 words
The dental cream claimed in claim 1 wherein said zinc oxide is present in amount of about 0.5-1 percent.
Claim 2
Dependent Claim
19 words
The dental cream claimed in claim 1 wherein such benzyl alcohol is present in amount of about 0.75-3.5 percent.
Claim 3
Dependent Claim
40 words
A dental cream comprising about 20-52 percent by weight of a dentally acceptable water-soluble polishing agent having calcium carbonate as its major component, about 0.5-5 percent by weight of benzyl alcohol and about 0.15-2 percent by weight of zinc oxide.
Claim 4
Dependent Claim
28 words
The dental cream claimed in claim 4 wherein said polishing material is a mixture of a major amount of calcium carbonate and a minor amount of hydrated alumina.
Claim 5
Dependent Claim
31 words
The dental cream claimed in claim 4 wherein said polishing material is a mixture of a major amount of calcium carbonate and minor amounts of hydrated alumina and insoluble sodium metaphosphate.
Claim 6
Dependent Claim
19 words
The dental cream claim in claim 4 wherein said benzyl alcohol is present in amount of about 0.75-3.5 percent.
Claim 7
Dependent Claim
52 words
A packaged dental cream comprising an unlined aluminum tube having incorporated therein a dental cream comprising about 20-75 percent by weight of a dentally acceptable water-insoluble polishing agent having hydrated alumina as its major component, about 0.5-5 percent by weight of benzyl alcohol and about 0.15-2 percent by weight of zinc oxide.
Claim 8
Dependent Claim
51 words
A packaged dental cream comprising an unlined aluminum tube having incorporated therein a dental cream comprising about 20-52 percent by weight of a dentally acceptable polishing agent having calcium carbonate as its major component, about 0.5-5 percent by weight of benzyl alcohol and about 0.15-2 percent by weight of zinc oxide.
References Cited (Backward Citations)
US3095356A
Cited
US3227618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |