US2680643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weed extractor
Assignee: Individual
•
Filing: 1950-06-01
•
Granted: 1954-06-08
•
Expires: 1970-06-01
Abstract
No abstract record available.
Inventors
- 👤 Samuel A Cravotta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:31
CPC Classifications
A; A01; A01B; A01B1/00; A01B1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE271752C
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US816536A
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CH71561A
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US1549198A
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CH174287A
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CH176834A
Cited
US2082476A
Cited
US2164373A
Cited
US2194336A
Cited
US2402550A
Cited
US2492035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |