US2860060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic cement additives and cement compositions containing same
Assignee: American Marietta Co
•
Filing: 1956-03-06
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Granted: 1958-11-11
•
Expires: 1976-03-06
Abstract
No abstract record available.
Inventors
- 👤 Stephen W Benedict
- 👤 Thomas M Kelly
- 👤 Paul B Jacox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:45
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
AN ADDITIVE FOR HYDRAULIC CEMENT MIXES CONSISTING ESSENTIALLY OF FROM 5 TO 50 PARTS BY WEIGHT OF WASTE SULFITE LIQUOR SOLIDS, FROM 1 TO 15 PARTS BY WEIGHT OF A MEMBER OF THE CLASS CONSISTING OF WATER-SOLUBLE AROMATIC CARBOXLIC ACIDS AND THEIR WATER-SOLUBLE SALTS AND ESTERS, FROM 1/2 TO 40 PARTS BY WEIGHT-SOLUBLE CHLORIDE ACCELERATOR, AND FROM 1/2 TO 10 PARTS BY WEIGHT OF A WATER-SOLUBLE NON-CARBOXLIC AMINE SELECTED FROM THE GROUP CONSISTING OF PRIMARY, SECONDARY, AND TERTIARY ALKYL AND ALKYLOL AMINES.
Claim 2
Dependent Claim
82 words
AN ADDITIVE FOR HYDRAULIC CEMENT MIXES CONSISTING ESSENTIALLY OF FROM 5 TO 50 PARTS BY WEIGHT OF WASTE SULFITE LIQUOR SOLIDS, FROM 1 TO 15 PARTS BY WEIGHT OF A MEMBER OF THE CLASS CONSISTING OF WATER-SOLUBLE AROMATIC CARBOXLIC ACIDS AND THEIR WATER-SOLUBLE SALTS AND ESTERS, FROM 1/2 TO 40 PARTS BY WEIGHT-SOLUBLE CHLORIDE ACCELERATOR, AND FROM 1/2 TO 10 PARTS BY WEIGHT OF A WATER-SOLUBLE NON-CARBOXLIC AMINE SELECTED FROM THE GROUP CONSISTING OF PRIMARY, SECONDARY, AND TERTIARY ALKYL AND ALKYLOL AMINES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |