US3331155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planting structure and method of planting seeds
Assignee: University of California Berkeley
•
Filing: 1964-10-22
•
Granted: 1967-07-18
•
Expires: 1984-10-22
Abstract
No abstract record available.
Inventors
- 👤 William J Chancellor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:49
CPC Classifications
A; A01; A01G; A01G13/00; A01C; A01C7/00; A01C7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1200396A
Cited
US1880136A
Cited
US1959139A
Cited
US2571491A
Cited
US3177616A
Cited
GB927029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |