Patent US3235794A successfully refreshed from Google Patents.
Patent US2737732A successfully refreshed from Google Patents.
US2737732A
Expired / Lapsed
US
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Land clearing rake
Assignee: Individual
•
Filing: 1953-08-14
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Granted: 1956-03-13
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Expires: 1973-08-14
Abstract
No abstract record available.
Inventors
- 👤 Thomas A Billings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:26
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/815; E02F3/8152; A; A01; A01D; A01D76/00; A01D76/006; A01D80/00; A01D80/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |