Patent US2659166A successfully refreshed from Google Patents.
US2659166A
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Land leveling machine
Assignee: Individual
•
Filing: 1949-04-29
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Granted: 1953-11-17
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Expires: 1969-04-29
Abstract
No abstract record available.
Inventors
- 👤 Berton M Mathias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:40
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/20; E02F9/22; E02F9/2264; E02F9/2267; E02F3/00; E02F3/04; E02F3/64; E02F3/6454; E02F3/6463; E02F3/65; E02F3/654; E02F3/658; E02F9/2271
Claims Analysis
Total Claims: 0
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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) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |