US3329006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the determination of coefficients of permeability and electroosmotic permeability
Assignee: MO SELSKOKHOZJAISTVENNAJA AKAD
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Filing: 1964-09-11
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Granted: 1967-07-04
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Expires: 1984-09-11
Abstract
No abstract record available.
Inventors
- 👤 Silkin Alexandr Mikhailovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:53
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44756; G01N15/00; G01N15/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN APPARATUS FOR THE DETERMINATION COEFFICIENTS OF PERMEABILITY OF SOIL COMPRISING: A CYLINDRICAL BODY; TWO CAPS, ONE ARRANGED AT EACH END OF SAID BODY; DEVICES FOR MOVING SAID CYLINDRICAL CAPS ALONG THE BODY; AN ELASTIC SKIN, PLACED CONCENTRICALLY IN SAID CYLINDRICAL BODY; A DEVICE FOR FASTENING SAID SKIN TO THE ENDS OF SAID CYLINDRICAL BODY; A CIRCULAR SPACE DEFINED BETWEEN THE INTERNAL WALLS OF THE CYLINDRICAL BODY AND SAID ELASTIC SKIN; A DEVICE FOR FILLING SAID CIRCULAR SPACE WITH WATER; A DEVICE FOR RELEASING THE AIR FROM SAID SPACE; A PAIR OF MOVABLE FILTERS PLACED WITHIN THE ENDS OF SAID ELASTIC CYLINDRICAL
Claim 2
Independent Claim
102 words
AN APPARATUS FOR THE DETERMINATION COEFFICIENTS OF PERMEABILITY OF SOIL COMPRISING: A CYLINDRICAL BODY; TWO CAPS, ONE ARRANGED AT EACH END OF SAID BODY; DEVICES FOR MOVING SAID CYLINDRICAL CAPS ALONG THE BODY; AN ELASTIC SKIN, PLACED CONCENTRICALLY IN SAID CYLINDRICAL BODY; A DEVICE FOR FASTENING SAID SKIN TO THE ENDS OF SAID CYLINDRICAL BODY; A CIRCULAR SPACE DEFINED BETWEEN THE INTERNAL WALLS OF THE CYLINDRICAL BODY AND SAID ELASTIC SKIN; A DEVICE FOR FILLING SAID CIRCULAR SPACE WITH WATER; A DEVICE FOR RELEASING THE AIR FROM SAID SPACE; A PAIR OF MOVABLE FILTERS PLACED WITHIN THE ENDS OF SAID ELASTIC CYLINDRICAL
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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |