US2614346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Land leveler
Assignee: Individual
•
Filing: 1948-07-09
•
Granted: 1952-10-21
•
Expires: 1968-07-09
Abstract
No abstract record available.
Inventors
- 👤 James V Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:11
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7663; E02F3/7672; A; A01; A01B; A01B31/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US636859A
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US1463515A
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US1672140A
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US1855459A
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US1759982A
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US1845324A
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US2076626A
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US2277889A
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US2283744A
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US2337725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |