US3256155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dentifrice composition
Assignee: Lever Brothers Co
•
Filing: 1962-04-11
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Granted: 1966-06-14
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Expires: 1982-04-11
Abstract
No abstract record available.
Inventors
- 👤 Cahn Arno
- 👤 Mark D Konort
- 👤 Melvin A Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:22
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/46; A61K8/463; C; C07; C07C; C07C305/00; C07C305/02; C07C305/04; C07C305/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A DENTIFRICE COMPOSITION COMPRISING AN ABRASIVE AND A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
12 words
A DENTIFRICE COMPOSITION COMPRISING AN ABRASIVE AND A COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US2114042A
Cited
US2191199A
Cited
US2161937A
Cited
US2216816A
Cited
US3000832A
Cited
US2944028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |