US2554464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oral composition
Assignee: Individual
•
Filing: 1947-05-22
•
Granted: 1951-05-22
•
Expires: 1967-05-22
Abstract
No abstract record available.
Inventors
- 👤 Kraus Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:06
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/22; A61K8/30; A61K8/31; A61K8/33; A61K8/36; A61K8/365
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
35 words
A DENTIFRICE WHICH COMPRISES A LACTATE, A COMPOUND SELECTED FROM THE CLASS CONSISTING OF PEROXIDES, PER-SALTS AND PER-ACIDS, A SOURCE OF FERROUS IONS, AND SUBSTANTIALLY WATER-FREE MEDIUM FOR SUSPENSION OF THE MIXTURE OF SAID COMPOUNDS.
References Cited (Backward Citations)
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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) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |