US2934445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paints based on portland cement
Assignee: Associated Portland Cement Manufacturers Ltd
•
Filing: 1957-09-06
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Granted: 1960-04-26
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Expires: 1977-09-06
Abstract
No abstract record available.
Inventors
- 👤 Jones Kenneth Wilson
- 👤 Jackson Peter Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:11
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A DRY AND FREE-RUNNING PAINT COMPOSITION CONSISTING ESSENTIALLY OF PORTLAND CEMENT, A WATER-REPELLENT COMPOUND SELECTED FROM THE GROUP CONSISTING OF STEARIC ACID AND ESTER AND SALTS OF STEARIC ACID, AND 0.05-2% BY WEIGHT OF AN ALIPHATIC PRIMARY MONO-AMINE HAVING 6-10 CARBON ATOMS PER MOLECULE, INCLUDING MIXTURES OF SUCH AMINES, THE RATIO OF THE PROPORTIONS OF AMINE AND WATERREPELLENT MATERIAL PRESENT BEING IN THE RANGE OF FROM 0.1-4.0
Claim 2
Dependent Claim
67 words
A DRY AND FREE-RUNNING PAINT COMPOSITION CONSISTING ESSENTIALLY OF PORTLAND CEMENT, A WATER-REPELLENT COMPOUND SELECTED FROM THE GROUP CONSISTING OF STEARIC ACID AND ESTER AND SALTS OF STEARIC ACID, AND 0.05-2% BY WEIGHT OF AN ALIPHATIC PRIMARY MONO-AMINE HAVING 6-10 CARBON ATOMS PER MOLECULE, INCLUDING MIXTURES OF SUCH AMINES, THE RATIO OF THE PROPORTIONS OF AMINE AND WATERREPELLENT MATERIAL PRESENT BEING IN THE RANGE OF FROM 0.1-4.0
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) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |