US2556959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dentifrice and method of preparing same
Assignee: Monsanto Chemicals Ltd
•
Filing: 1949-04-20
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Granted: 1951-06-12
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Expires: 1969-04-20
Abstract
No abstract record available.
Inventors
- 👤 Robert V Connelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:36
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24; A61K8/30; A61K8/55; A61Q; A61Q11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A DENTIFRICE BASE FOR USE IN SUDSING DENTRIFICE COMPOSITIONS COMPRISING DICALCIUM PHOSPHATE AND ABOUT 0.05% TO ABOUT 0.6% BY WEIGHT OF AN ALKALINE EARTH COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE OXIDE, HYDROXIDE AND GLYCEROPHOSPHATE OF CALCIUM.
Claim 2
Dependent Claim
38 words
A DENTIFRICE BASE FOR USE IN SUDSING DENTRIFICE COMPOSITIONS COMPRISING DICALCIUM PHOSPHATE AND ABOUT 0.05% TO ABOUT 0.6% BY WEIGHT OF AN ALKALINE EARTH COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE OXIDE, HYDROXIDE AND GLYCEROPHOSPHATE OF CALCIUM.
References Cited (Backward Citations)
US396192A
Cited
GB190704244A
Cited
US1717723A
Cited
US2216816A
Cited
US2287699A
Cited
GB572352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |