US2510776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-entrained concrete and method of making
Assignee: Mo och Domsjo AB
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Filing: 1948-12-06
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Granted: 1950-06-06
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Expires: 1968-12-06
Abstract
No abstract record available.
Inventors
- 👤 Gabrielson Carl Olof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:19
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/24; C04B24/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A CONCRETE OR MORTAR MIX OF ENHANCED PLASTICITY COMPRISING AN HYDRAULIC CEMENT, AGGREGATE AND AN APPRECIABLE AMOUNT OF NOT MORE THAN 0.1% BY WEIGHT OF THE CEMENT, OF ALKALI TREATED TALL OIL PITCH PRODUCED BY HEATING, AT A TEMPERATURE BETWEEN 200*C. AND 250*C. OF TALL OIL PITCH WITH A SUBSTANCE FROM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDES AND ALKALI METAL CARBONATES IN A QUANTITY EQUIVALENT TO THE SAPONIFICATION NUMBER OF SAID PITCH FOR SUCH A TIME THAT SUBSTANTIALLY ALL GASEOUS SUBSTANCES AND WATER IN THE REACTION MASS ARE DRIVEN OFF.
Claim 2
Dependent Claim
91 words
A CONCRETE OR MORTAR MIX OF ENHANCED PLASTICITY COMPRISING AN HYDRAULIC CEMENT, AGGREGATE AND AN APPRECIABLE AMOUNT OF NOT MORE THAN 0.1% BY WEIGHT OF THE CEMENT, OF ALKALI TREATED TALL OIL PITCH PRODUCED BY HEATING, AT A TEMPERATURE BETWEEN 200*C. AND 250*C. OF TALL OIL PITCH WITH A SUBSTANCE FROM THE GROUP CONSISTING OF ALKALI METAL HYDROXIDES AND ALKALI METAL CARBONATES IN A QUANTITY EQUIVALENT TO THE SAPONIFICATION NUMBER OF SAID PITCH FOR SUCH A TIME THAT SUBSTANTIALLY ALL GASEOUS SUBSTANCES AND WATER IN THE REACTION MASS ARE DRIVEN OFF.
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) | 1953-06-05 | 1953-12-05 | 1954-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-05 | 1957-12-05 | 1958-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-05 | 1961-12-05 | 1962-06-06 | $7700.00 | Window Closed / Lapsed |