US3144347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monohydroxy organic acid compounds for improving the properties of cement, concrete,and mortars
Assignee: EIDP Inc
•
Filing: 1962-02-13
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Granted: 1964-08-11
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Expires: 1982-02-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Zach S Cowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:24
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/04; C04B24/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
THE METHOD OF MAKING IMPROVED INORGANIC CONCRETE OR MORTAR COMPRISING ADMIXING WITH AT LEAST ONE OF THE COMPONENTS OF THE CONCRETE OR MORTAR FROM ABOUT 0.001 TO 3.5 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE INORGANIC CEMENT USED OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROXYACETIC ACID, LACTIC ACID, AND THEIR LACTIDES AND SODIUM, POTASSIU, CALCIUM AND AMINE SALTS.
References Cited (Backward Citations)
US2672424A
Cited
US2880102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |