US2989314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broadcast spreader
Assignee: Individual
•
Filing: 1959-01-06
•
Granted: 1961-06-20
•
Expires: 1979-01-06
Abstract
No abstract record available.
Inventors
- 👤 Lester L Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:24
CPC Classifications
A; A01; A01C; A01C17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US280437A
Cited
US1211596A
Cited
GB236400A
Cited
US1655780A
Cited
US2299565A
Cited
US2594084A
Cited
US2535414A
Cited
US2698184A
Cited
US2672259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |