US2570827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition fok waterproofing
Assignee: —
•
Filing: —
•
Granted: 1951-10-09
•
Expires: 1968-10-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:33
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/32; C23C18/34; C04; C04B; C04B24/00; C04B24/24; C04B24/38; C04B24/383; C04B28/00; C04B28/02; C04B40/00; C04B40/0028; C04B40/0039; C04B41/00; C04B41/009; C04B41/45; C04B41/46; C04B41/48; C04B41/50; C04B41/5007; C08; C08L; C08L1/00; C08L1/08; C08L1/26; C08L1/28; C09; C09D; C09D101/00; C09D101/08; C09D101/26; C09D101/28; C04B2111/00; C04B2111/00474; C04B2111/00482
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF PARTICLES OF FINELY-DIVIDED IRON CAPABLE OF UNDERGOING OXIDATION, FROM ABOUT 1 3/4% TO ABOUT 7 1/4%, BY WEIGHT, OF AN AMMONIUM DERIVATIVE SELECTED FROM THE CLASS CONSISSTING OF AMMONIUM CHLROIDE AND AMMONIUM ALUM, AND FROM ABOUT 1% TO ABOUT 3%, BY WEIGHT OF A WATERSOLUBLE CELLULOSE ETHER SELECTED FROM THE CLASS CONSISTING OF METHYL CELLULOSE, HYDROXY ETHYL CELLULOSE AND SODIUM CARBOXY METHYL CELLULOSE SAID COMPOSITION BEING IN THE FORM OF A DRY MIXTURE AND FORMING A WATERPROOF COATING WHEN MIXED WITH WATER AND APPLIED TO A POROUS CONCRETE SURFACE.
Claim 2
Dependent Claim
96 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF PARTICLES OF FINELY-DIVIDED IRON CAPABLE OF UNDERGOING OXIDATION, FROM ABOUT 1 3/4% TO ABOUT 7 1/4%, BY WEIGHT, OF AN AMMONIUM DERIVATIVE SELECTED FROM THE CLASS CONSISSTING OF AMMONIUM CHLROIDE AND AMMONIUM ALUM, AND FROM ABOUT 1% TO ABOUT 3%, BY WEIGHT OF A WATERSOLUBLE CELLULOSE ETHER SELECTED FROM THE CLASS CONSISTING OF METHYL CELLULOSE, HYDROXY ETHYL CELLULOSE AND SODIUM CARBOXY METHYL CELLULOSE SAID COMPOSITION BEING IN THE FORM OF A DRY MIXTURE AND FORMING A WATERPROOF COATING WHEN MIXED WITH WATER AND APPLIED TO A POROUS CONCRETE SURFACE.
References Cited (Backward Citations)
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Cited
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US2026475A
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US2316745A
Cited
US2346624A
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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) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |