US3274783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of stopping landslides and soil shear failures
Assignee: GEOTECHNICAL TEST SYSTEMS Inc
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Filing: 1964-01-10
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Granted: 1966-09-27
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Expires: 1984-01-10
Abstract
No abstract record available.
Inventors
- 👤 Richard L Handy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:19
CPC Classifications
E; E02; E02D; E02D17/00; E02D17/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN A METHOD OF STOPPING LANDSLIDES AND SOIL SHEAR FAILURES IN SOIL ABOVE A LATERALLY-EXTENDING, WATER-PERMEABLE SUB-SURFACE SOIL STRATUM WHICH OVERLIES A RELATIVELY WATER-IMPERMEABLE STRATUM, SAID PERMEABLE SOIL STRATUM CONTAINING AT LEAST 10% BY WEIGHT ON A DRY BASIS OF MONTOMORILLONITIC CLAY AND BEING SUBSTANTIALLY SATURATED WITH WATER, THEREBY PROVIDING A PERCHED WATER TABLE WHICH ACCENTUATES THE TENDENCY OF SAID SUB-SURFACE SOIL STRATUM TO FORM A SHEAR ZONE, THE SEQUENCE OF STEPS COMPRISING: LOCATING THE POSITION AND THICKNESS OF SAID SUB-SURFACE SOIL STRATUM;
Claim 2
Dependent Claim
83 words
IN A METHOD OF STOPPING LANDSLIDES AND SOIL SHEAR FAILURES IN SOIL ABOVE A LATERALLY-EXTENDING, WATER-PERMEABLE SUB-SURFACE SOIL STRATUM WHICH OVERLIES A RELATIVELY WATER-IMPERMEABLE STRATUM, SAID PERMEABLE SOIL STRATUM CONTAINING AT LEAST 10% BY WEIGHT ON A DRY BASIS OF MONTOMORILLONITIC CLAY AND BEING SUBSTANTIALLY SATURATED WITH WATER, THEREBY PROVIDING A PERCHED WATER TABLE WHICH ACCENTUATES THE TENDENCY OF SAID SUB-SURFACE SOIL STRATUM TO FORM A SHEAR ZONE, THE SEQUENCE OF STEPS COMPRISING: LOCATING THE POSITION AND THICKNESS OF SAID SUB-SURFACE SOIL STRATUM;
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |