Patent US2712467A successfully refreshed from Google Patents.
US2712467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually operable hole digger
Assignee: —
•
Filing: —
•
Granted: 1955-07-05
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Expires: 1972-07-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:49
CPC Classifications
A; A01; A01B; A01B1/00; A01B1/16; A01B1/18; A01C; A01C5/00; A01C5/02; E; E02; E02F; E02F3/00; E02F3/02; E21; E21B; E21B11/00; E21B11/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US521208A
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US2028680A
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US734774A
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US911814A
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US951945A
Cited
US1090578A
Cited
US1443593A
Cited
US1443138A
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US2160696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-04 | 1959-01-03 | 1959-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-04 | 1963-01-03 | 1963-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-04 | 1967-01-03 | 1967-07-05 | $7700.00 | Window Closed / Lapsed |