US3197428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising cement and a copolymer containing carboxylate and alcohol groups
Assignee: Wyeth Holdings LLC
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Filing: 1961-10-13
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Granted: 1965-07-27
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Expires: 1981-10-13
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Siegele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:45
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/24; C04B24/26; C04B24/2623; C09; C09K; C09K8/00; C09K8/42; C09K8/46; C09K8/467; C09K8/487; C04B2103/00; C04B2103/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A CEMENT COMPOSITION CAPABLE OF FORMING A FLUID SLURRY WHEN MIXED WITH WATER, SAID CEMENT COMPOSITION COMPRISING A DRY HYDRAULIC CEMENT MIXED WITH FROM 0.1 TO 3 WEIGHT PERCENT, BASED ON SAID HYDRAULIC CEMENT, OF A HOMOGENEOUS, COMPLETELY HYDROLYZED, WATER-SOLUBLE COPOLYMER PREPARED FROM VINYL ACETATE AND AN AB-UNSATURATED MONOCARBOXYLIC ACID DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, METHACRYLIC ACID, METHYL ACRYLATE, ETHYL ACRYLATE, PROPYL ACRYLATE, METHYL METHACRYLATE, DIETHYL FUMARATE, DIMETHYL MALEATE, FUMARIC ACID, MALEIC ACID AND ACRYLONITRILE, SAID COPOLYMER CONTAINING HYDROXYL AND ALKALI METAL CARBOXYLATE GROUPS, THE GROUPS BEING PRESENT IN SAID COPOLYMER INTHE MOL RATIO OF FROM 97 TO 82 OF HYDROXYL AND FROM 3 TO 18 OF THE ALKALI METAL CARBOXYLATE, RESPECTIVELY.
Claim 2
Dependent Claim
116 words
A CEMENT COMPOSITION CAPABLE OF FORMING A FLUID SLURRY WHEN MIXED WITH WATER, SAID CEMENT COMPOSITION COMPRISING A DRY HYDRAULIC CEMENT MIXED WITH FROM 0.1 TO 3 WEIGHT PERCENT, BASED ON SAID HYDRAULIC CEMENT, OF A HOMOGENEOUS, COMPLETELY HYDROLYZED, WATER-SOLUBLE COPOLYMER PREPARED FROM VINYL ACETATE AND AN AB-UNSATURATED MONOCARBOXYLIC ACID DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, METHACRYLIC ACID, METHYL ACRYLATE, ETHYL ACRYLATE, PROPYL ACRYLATE, METHYL METHACRYLATE, DIETHYL FUMARATE, DIMETHYL MALEATE, FUMARIC ACID, MALEIC ACID AND ACRYLONITRILE, SAID COPOLYMER CONTAINING HYDROXYL AND ALKALI METAL CARBOXYLATE GROUPS, THE GROUPS BEING PRESENT IN SAID COPOLYMER INTHE MOL RATIO OF FROM 97 TO 82 OF HYDROXYL AND FROM 3 TO 18 OF THE ALKALI METAL CARBOXYLATE, RESPECTIVELY.
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |