Patent US3097704A successfully refreshed from Google Patents.
US3097704A
Expired / Lapsed
US
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Notched tillage disc with radially projecting teeth
Assignee: Individual
•
Filing: 1962-07-30
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Granted: 1963-07-16
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Expires: 1982-07-30
Abstract
No abstract record available.
Inventors
- 👤 Howard L Gillespie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:49
CPC Classifications
A; A01; A01B; A01B23/00; A01B23/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732785A
Cited
DE1074307B
Cited
US2300446A
Cited
US2477662A
Cited
FR1040837A
Cited
US2757596A
Cited
US3008527A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |