US3324958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil-sampling apparatus with core dislodging means
Assignee: Individual
•
Filing: 1964-07-20
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Granted: 1967-06-13
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Expires: 1984-07-20
Abstract
No abstract record available.
Inventors
- 👤 Roy A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:38
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02; E21B7/027; E21B7/028; E21B19/00; E21B19/08; E21B19/086; E21B25/00; E21B25/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
A SOIL-SAMPLING APPARATUS COMPRISING A FRAME, A TUBULAR SOIL PROBE MOVABLY MOUNTED ON SAID FRAME, MEANS ON SAID FRAME SELECTIVELY AXIALLY AND VERTICALLY RECIPROCATING SAID PROBE, SAID PROBE HAVING AN ELONGATED AXIALLY EXTENDING OPENING ON ONE SIDE THEREOF WHICH TERMINATES SHORT OF THE LOWER EXTREMITY OF SAID PROBE, SAID ELONGATED OPENING HAVING A CIRUMFERENTIAL DIMENSION WHEREBY A SOIL CORE CAN BE REMOVED FROM SAID PROBE THROUGH SAID OPENING, AND MEANS EXTENDING THROUGH SAID OPENING INTO SAID PROBE FOR DISLODGING SOIL CORES THERETHROUGH IN RESPONSE TO UPWARD MOVEMENT OF SAID PROBE.
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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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |