Patent US2990382A successfully refreshed from Google Patents.
US2990382A
Expired / Lapsed
US
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Composition comprising hydraulic cement, methyl cellulose and reemulsifiable polyvinyl acetate, method of preparing same and mortar prepared therefrom
Assignee: Tile Council of America Inc
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Filing: 1958-10-09
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Granted: 1961-06-27
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Expires: 1978-10-09
Abstract
No abstract record available.
Inventors
- 👤 Herman B Wagner
- 👤 Fitzgerald John Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:49
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A COMPOSITION CAPABLE OF BEING MIXED WITH WATER TO FORMED A MORTAR PASTE AND COMPRISING A HYDRAULIC CEMENT AS ITS PRINCIPAL INGREDIENT AND THE FOLLOWING INGREDIENTS IN PERCENTAGES BASED ON THE WEIGHT OF THE CEMENT: METHYL CELLULOSE HAVING A VISCOSITY BETWEEN ABOUT 80 AND 6000 CENTIPOISES IN 2% SOLUTION, ABOUT 0.25 TO 6%, AND REEMULSIFIABLE POLYVINYL ACETATE, ABOUT 1 TO 11%.
Claim 2
Dependent Claim
61 words
A COMPOSITION CAPABLE OF BEING MIXED WITH WATER TO FORMED A MORTAR PASTE AND COMPRISING A HYDRAULIC CEMENT AS ITS PRINCIPAL INGREDIENT AND THE FOLLOWING INGREDIENTS IN PERCENTAGES BASED ON THE WEIGHT OF THE CEMENT: METHYL CELLULOSE HAVING A VISCOSITY BETWEEN ABOUT 80 AND 6000 CENTIPOISES IN 2% SOLUTION, ABOUT 0.25 TO 6%, AND REEMULSIFIABLE POLYVINYL ACETATE, ABOUT 1 TO 11%.
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) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |