Patent US2624812A successfully refreshed from Google Patents.
Patent US1066683A successfully refreshed from Google Patents.
US1066683A
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Excavating apparatus.
Assignee: FREDERICK H LEXOW
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Filing: 1912-06-03
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Granted: 1913-07-08
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Expires: 1932-06-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Truesdell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:27
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/46; E02F3/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1916-07-07 | 1917-01-06 | 1917-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-07-07 | 1921-01-06 | 1921-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-07-07 | 1925-01-06 | 1925-07-08 | $7700.00 | Window Closed / Lapsed |