Patent US2576199A successfully refreshed from Google Patents.
US2576199A
Expired / Lapsed
US
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Combination post hole digger and earth remover
Assignee: Individual
•
Filing: 1947-12-02
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Granted: 1951-11-27
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Expires: 1967-12-02
Abstract
No abstract record available.
Inventors
- 👤 Lewis D Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:59
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02; E21B7/027; E21B7/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US509994A
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US750840A
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US2217300A
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US758781A
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US1113277A
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US1604896A
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US2016667A
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US2107958A
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US2250670A
Cited
US2491908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |