US2630638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulldozing machine
Assignee: Keppel LeTourneau USA Inc
•
Filing: 1947-02-11
•
Granted: 1953-03-10
•
Expires: 1967-02-11
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:43
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7609
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2126791A
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US2197248A
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US2213635A
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US2238346A
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US2352593A
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US2434693A
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US2404759A
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US2446136A
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US2436912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |