US2510458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Row crop blocking implement
Assignee: Individual
•
Filing: 1946-06-15
•
Granted: 1950-06-06
•
Expires: 1966-06-15
Abstract
No abstract record available.
Inventors
- 👤 Ernest F Blackwelder
- 👤 Henry V Lea
- 👤 John A Fleig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:48
CPC Classifications
A; A01; A01B; A01B41/00; A01B41/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US338130A
Cited
US369364A
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US461931A
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US593908A
Cited
US1355737A
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US1884246A
Cited
US1674551A
Cited
US1804412A
Cited
GB536741A
Cited
US2373716A
Cited
US2417931A
Cited
US2414507A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-05 | 1953-12-05 | 1954-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-05 | 1957-12-05 | 1958-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-05 | 1961-12-05 | 1962-06-06 | $7700.00 | Window Closed / Lapsed |