US2927033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic cement compositions
Assignee: American Marietta Co
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Filing: 1957-06-04
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Granted: 1960-03-01
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Expires: 1977-06-04
Abstract
No abstract record available.
Inventors
- 👤 Stephen W Benedict
- 👤 Thomas M Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:55
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN ADDITIVE FOR HYDRAULIC CEMENT MIXES CONSISTING ESSENTIALLY OF A MIXTURE OF FROM 20 TO 50 PARTS BY WEIGHT OF WASTE SULFITE LIQUOR SOLIDS, FROM 2 TO 30 PARTS BY WEIGHT OF A WATER-SOLUBLE CHORIDE ACCELERATOR, FROM 15 TO 30 PARTS BY WEIGHT OF A MEMBER OF THE CLASS CONSISTING OF WATER-SOLUBLE ALDEHYDE-AROMATIC SULFONIC ACID CONDENSATION PRODUCTS AND WATER-SOLUBLE SALTS THEREOF, AND 3 TO 20 PARTS BY WEIGHT OF A MEMBER OF THE CLASS CONSISTING OF WATER-SOLUBLE ALKYL AMINES AND THEIR WATER-SOLUBLE MINERAL ACID ADDITION PRODUCTS, THE COMBINED WEIGHTS OF SAID WASTE SULFITE LIQUOR SOLIDS AND SAID ALDEHYDE-SULFONIC ACID MATERIAL BEING AT LEAST ABOUT 45 PARTS BY WEIGHT.
Claim 2
Dependent Claim
108 words
AN ADDITIVE FOR HYDRAULIC CEMENT MIXES CONSISTING ESSENTIALLY OF A MIXTURE OF FROM 20 TO 50 PARTS BY WEIGHT OF WASTE SULFITE LIQUOR SOLIDS, FROM 2 TO 30 PARTS BY WEIGHT OF A WATER-SOLUBLE CHORIDE ACCELERATOR, FROM 15 TO 30 PARTS BY WEIGHT OF A MEMBER OF THE CLASS CONSISTING OF WATER-SOLUBLE ALDEHYDE-AROMATIC SULFONIC ACID CONDENSATION PRODUCTS AND WATER-SOLUBLE SALTS THEREOF, AND 3 TO 20 PARTS BY WEIGHT OF A MEMBER OF THE CLASS CONSISTING OF WATER-SOLUBLE ALKYL AMINES AND THEIR WATER-SOLUBLE MINERAL ACID ADDITION PRODUCTS, THE COMBINED WEIGHTS OF SAID WASTE SULFITE LIQUOR SOLIDS AND SAID ALDEHYDE-SULFONIC ACID MATERIAL BEING AT LEAST ABOUT 45 PARTS BY WEIGHT.
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) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |