Patent US3232168A successfully refreshed from Google Patents.
US3232168A
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US
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Apparatus for producing holes in the ground
Assignee: Anstalt fuer Montage Technik
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Filing: 1963-10-02
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Granted: 1966-02-01
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Expires: 1983-10-02
Abstract
No abstract record available.
Inventors
- 👤 Alfons J Mangeng
- 👤 Seghezzi Hans-Dieter
- 👤 Rangger Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:39
CPC Classifications
A; A01; A01G; A01G17/00; A01G17/04; A01G17/14; A01G17/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1661091A
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US2328247A
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US2922366A
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US2823367A
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US2898812A
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US3005202A
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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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |