US2950206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finishing mortars
Assignee: NYA MURBRUKSFABRIKENS I STOCKHOLM AB
•
Filing: 1956-03-14
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Granted: 1960-08-23
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Expires: 1976-03-14
Abstract
No abstract record available.
Inventors
- 👤 Ostergren Jarl Olle Borje
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:47
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/10; C09; C09D; C09D5/00; C09D5/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A FINISHING MORTAR CONSISTING ESSENTIALLY OF A MIXTURE OF ABOUT 66 TO 83% BY WEIGHT OF FINE-GRAINED INORGANIC FILLER IN WHICH THE SIZE OF THE GRAINS IS NOT IN EXCESS OF ONE MILLIMETER, FINELY POWDERED DRY-SLAKED LIME, WATER SOLUBLE ETHYL CELLULOSE ETHER, BENTONITE AS A GEL FORMING AGENT, AND WATER, THE RATIO BETWEEN THE AMOUNTS OF ETHYL CELLULOSE ETHER AND DRY-SLAKED LIME BEING BETWEEN ABOUT 1 TO 3 AND 1 TO 10, THE DRY-SLAKED LIME IN THE MIXTURE SUPPLYING A SUFFICIENT AMOUNT OF CALCIUM CARBONATE WHEN REACTED WITH CARBON DIOXIDE TO BIND THE MORTAR, AND THE ETHYL CELLULOSE ETHER ACTING AS A BINDING AGENT TO PREVENT SHRINKAGE OF THE MORTAR AS THE WATER EVAPORATES.
Claim 2
Dependent Claim
114 words
A FINISHING MORTAR CONSISTING ESSENTIALLY OF A MIXTURE OF ABOUT 66 TO 83% BY WEIGHT OF FINE-GRAINED INORGANIC FILLER IN WHICH THE SIZE OF THE GRAINS IS NOT IN EXCESS OF ONE MILLIMETER, FINELY POWDERED DRY-SLAKED LIME, WATER SOLUBLE ETHYL CELLULOSE ETHER, BENTONITE AS A GEL FORMING AGENT, AND WATER, THE RATIO BETWEEN THE AMOUNTS OF ETHYL CELLULOSE ETHER AND DRY-SLAKED LIME BEING BETWEEN ABOUT 1 TO 3 AND 1 TO 10, THE DRY-SLAKED LIME IN THE MIXTURE SUPPLYING A SUFFICIENT AMOUNT OF CALCIUM CARBONATE WHEN REACTED WITH CARBON DIOXIDE TO BIND THE MORTAR, AND THE ETHYL CELLULOSE ETHER ACTING AS A BINDING AGENT TO PREVENT SHRINKAGE OF THE MORTAR AS THE WATER EVAPORATES.
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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) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |