US2836544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stannous chlorofluoride, method of preparing same, and dentifrice compositions therewith
Assignee: Indiana University Foundation Inc
•
Filing: 1955-02-07
•
Granted: 1958-05-27
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Expires: 1975-02-07
Abstract
No abstract record available.
Inventors
- 👤 William H Nebergall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:28
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61Q; A61Q11/00; C; C01; C01G; C01G19/00; C01G19/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
2 words
STANNOUS CHLOROFLUORIDE.
Claim 2
Dependent Claim
2 words
STANNOUS CHLOROFLUORIDE.
Claim 3
Dependent Claim
5 words
A DENTIFRICE CONTAINING STANNOUS CHLOROFLUORIDE.
Claim 4
Dependent Claim
5 words
A DENTIFRICE CONTAINING STANNOUS CHLOROFLUORIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |