Patent US2722759A successfully refreshed from Google Patents.
US2722759A
Expired / Lapsed
US
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Hydraulic excavator
Assignee: Individual
•
Filing: 1949-12-09
•
Granted: 1955-11-08
•
Expires: 1969-12-09
Abstract
No abstract record available.
Inventors
- 👤 Cosenza Francesco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:43
CPC Classifications
E; E02; E02F; E02F7/00; E02F7/06; E02F7/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US74804A
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US1426616A
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US903210A
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US1070991A
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US1160533A
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US1346679A
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US1701430A
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US1763769A
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US1777575A
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US2023686A
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US2386295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |