Patent US2882978A successfully refreshed from Google Patents.
US2882978A
Expired / Lapsed
US
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Under tree cultivator
Assignee: Individual
•
Filing: 1953-04-03
•
Granted: 1959-04-21
•
Expires: 1973-04-03
Abstract
No abstract record available.
Inventors
- 👤 Smith Alexander
- 👤 Burton D Baggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:55
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/42; A01D34/43; A01B; A01B39/00; A01B39/12; A01B39/16; A01B39/163; A01B39/166
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2206283A
Cited
US1274499A
Cited
US1912706A
Cited
US2197305A
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US2236598A
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US2291987A
Cited
US2473450A
Cited
US2539174A
Cited
US2574725A
Cited
GB663494A
Cited
US2630052A
Cited
US2619891A
Cited
US2694355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |