Patent US2655089A successfully refreshed from Google Patents.
US2655089A
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Earth working tool
Assignee: Keppel LeTourneau USA Inc
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Filing: 1949-05-27
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Granted: 1953-10-13
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Expires: 1969-05-27
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:38
CPC Classifications
A; A01; A01B; A01B13/00; A01B13/08; A01B59/00; A01B59/06; A01B59/065; A01B63/00; A01B63/02; A01B63/06; A01B63/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1974520A
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US2185179A
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US2151270A
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US2292904A
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US2190347A
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US2322256A
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US2339830A
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US2429463A
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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) | 1956-10-12 | 1957-04-13 | 1957-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-12 | 1961-04-13 | 1961-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-12 | 1965-04-13 | 1965-10-13 | $7700.00 | Window Closed / Lapsed |