US2575599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete hardening compositions of the metal salt type
Assignee: L SONNEBORN SONS Inc
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Filing: 1950-09-30
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Granted: 1951-11-20
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Expires: 1970-09-30
Abstract
No abstract record available.
Inventors
- 👤 Silverman Isador
- 👤 Moscowitz Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:28
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B28/00; C04B28/02; C04B41/45; C04B41/50; C04B41/5007; C04B41/5014; C04B41/60; C04B41/61; C04B41/65
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A CONCRETE HARDENING COMPOSITION IN DRY FORM FOR THE PREPARATION OF A NON-HYDROLYZING AQUEOUS SOLUTION THEREOF BY THE ADDITION OF A PREDETERMINED AMOUNT OF WATER COMPRISING AT LEAST ONE WATER SOLUBLE METAL SALT COMPRISING AT ENER, UREA SULFATE IN AMOUNT SUFFICEINT TO LOWER THE PH OF THE CONCRETE HARDENTING SOLUTION TO BE FORMED TO AT LEAST 2, AND A WETTING AGENT STABLE IN SOLUTION AT A PH NOT EXCEEDING 2 IN AMOUNT SUFFICEINT TO REDUCE THE SURFACE TENSION TO AT LEAST CRETE HARDENING SOLUTION TO BE FORMED TO AT LEAST 4/ DYNES PER CENTIMETER.
Claim 2
Dependent Claim
94 words
A CONCRETE HARDENING COMPOSITION IN DRY FORM FOR THE PREPARATION OF A NON-HYDROLYZING AQUEOUS SOLUTION THEREOF BY THE ADDITION OF A PREDETERMINED AMOUNT OF WATER COMPRISING AT LEAST ONE WATER SOLUBLE METAL SALT COMPRISING AT ENER, UREA SULFATE IN AMOUNT SUFFICEINT TO LOWER THE PH OF THE CONCRETE HARDENTING SOLUTION TO BE FORMED TO AT LEAST 2, AND A WETTING AGENT STABLE IN SOLUTION AT A PH NOT EXCEEDING 2 IN AMOUNT SUFFICEINT TO REDUCE THE SURFACE TENSION TO AT LEAST CRETE HARDENING SOLUTION TO BE FORMED TO AT LEAST 4/ DYNES PER CENTIMETER.
References Cited (Backward Citations)
US2203302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |