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US2699715A
Expired / Lapsed
US
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Earth furrowing apparatus
Assignee: Individual
•
Filing: 1949-02-08
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Granted: 1955-01-18
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Expires: 1969-02-08
Abstract
No abstract record available.
Inventors
- 👤 Dothan L Shelton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:53
CPC Classifications
A; A01; A01B; A01B35/00; A01B35/02; A01B35/04; A01B35/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US474461A
Cited
DE560161C
Cited
US748466A
Cited
US1830013A
Cited
US2029249A
Cited
US2195631A
Cited
US2385950A
Cited
US2464615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-17 | 1958-07-19 | 1959-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-17 | 1962-07-19 | 1963-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-17 | 1966-07-19 | 1967-01-18 | $7700.00 | Window Closed / Lapsed |