US2702952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Angling blade arrangement for tractors
Assignee: Keppel LeTourneau USA Inc
•
Filing: 1949-08-25
•
Granted: 1955-03-01
•
Expires: 1969-08-25
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:23
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7609; E02F3/7613
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2412574A
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US1961011A
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US1997001A
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US1964360A
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US2059431A
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US2185179A
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US2126791A
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US2136551A
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US2238346A
Cited
US2311553A
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US2451348A
Cited
US2600244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |