US2542518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dentifrice
Assignee: Individual
•
Filing: 1947-02-27
•
Granted: 1951-02-20
•
Expires: 1967-02-27
Abstract
No abstract record available.
Inventors
- 👤 Chester J Henschel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:26
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K8/24; A61K8/30; A61K8/40; A61K8/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A POWDERED DENTIFRICE INCLUDING THE FOLLOWING INGREDIENTS IN SUBSTANTIALLY THE FOLLOWING PROPORTIONS BY WEIGHT:
Claim 2
Dependent Claim
14 words
A POWDERED DENTIFRICE INCLUDING THE FOLLOWING INGREDIENTS IN SUBSTANTIALLY THE FOLLOWING PROPORTIONS BY WEIGHT:
References Cited (Backward Citations)
DE291565C
Cited
US1377780A
Cited
US1526940A
Cited
US1717723A
Cited
US1943856A
Cited
US1969340A
Cited
FR765453A
Cited
FR803161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |