US2489898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Excavating apparatus
Assignee: Individual
•
Filing: 1944-10-07
•
Granted: 1949-11-29
•
Expires: 1964-10-07
Abstract
No abstract record available.
Inventors
- 👤 Edward H Kluckhohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:21
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/42; E02F3/30; E02F3/32; E02F3/40; E02F3/401; E02F3/427; E02F3/46; E02F3/48; E02F3/58; E02F3/60; E02F3/96
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US530209A
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US711806A
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FR340512A
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US967741A
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US998029A
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US1359237A
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US1691100A
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US1840550A
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US1929004A
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FR748634A
Cited
US2055111A
Cited
US2227624A
Cited
US2239288A
Cited
US2211194A
Cited
US2303852A
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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) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |