US3344871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth boring machines and method of setting poles
Assignee: Individual
•
Filing: 1965-02-17
•
Granted: 1967-10-03
•
Expires: 1985-02-17
Abstract
No abstract record available.
Inventors
- 👤 Jack P Goodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:23
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
A METHOD OF BORING A HOLE IN COMPACTABLE EARTH WITHOUT REMOVING EARTH FROM THE HOLE COMPRISING FORCING A SMALL HOLE IN THE EARTH BY PROGRESSIVELY DISPLACING EARTH FROM THE HOLE FROM THE HOLE BOTTOM UPWARDLY AND OUTWARDLY AND PROGRESSIVELY COMPACTING THE DISPLACED EARTH WITH ADDITIONAL EARTH INTO THE WALL OF THE HOLE TO FORM A LARGER HOLE WITH THE EARTH SURROUNDING THE HOLE BEING COMPACTED A SUBSTANTIAL DISTANCE BEYOND THE HOLE.
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US2110582A
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US2169502A
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US2227763A
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US2528300A
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US3145783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |