US3131074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil stabilization
Assignee: PRODUCTS DEV Co
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Filing: 1961-06-19
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Granted: 1964-04-28
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Expires: 1981-06-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles E Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:31
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/04; C09; C09K; C09K17/00; C09K17/14; C09K17/18; C09K17/32; C09K17/40; C09K17/48; C04B2111/00; C04B2111/00474; C04B2111/00732; Y; Y10; Y10S; Y10S106/00; Y10S106/90
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
161 words
A METHOD FOR THE MANUFACTURE OF BRICKS AND BLOCKS HAVING LOW THERMAL CONDUCTIVITY AND HIGH MOISTURE RESISTANCE AND STRENGTH WHICH COMPRISES THE STEPS OF ADMIXING WITH A SOIL COMPOSITION COMPRISING NOT MORE THAN 50% BY WEIGHT OF CLAY AND AT LEAST 50% BY WEIGHT OF SAND, FROM ABOUT 0.5 TO 2.0% BY DRY WEIGHT OF THE SOIL OF A PROTEIN SELECTED FROM THE GROUP CONSISTING OF GLUTELINS, PROLAMINES, CASEIN, GELATIN, GLUE, GLUTEN AND SOYBEAN PROTEIN AND MIXTURES THEREOF, FROM ABOUT 2.0 TO 5.0% BY DRY WEIGHT OF THE SOIL OF AN ALKALINE MATERIAL SELECTED FROM THE GROUP CONSISTING OF AN ALKALINE EARTH METAL HYDROXIDE, AN ALKALINE EARTH METAL OXIDE, PORTLAND CEMENT AND MIXTURES THEREOF, AND FROM ABOUT 0.5 TO 3% BY DRY WEIGHT OF THE SOIL OF FERRIC OXIDE; ADJSUTING THE MOISTURE CONTENT OF SAID ADMIXTURE TO FROM ABOUT OPTIMUM TO ABOUT 10% IN EXCESS OF OPTIMUM; SUBSEQUENTLY MOLDING THE MIXTURE INTO A BRICK; AND REMOVING AXCESS MOISTURE FROM THE BRICK.
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |