US2507247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush cutter
Assignee: ARNOLD COVALT
•
Filing: 1948-08-17
•
Granted: 1950-05-09
•
Expires: 1968-08-17
Abstract
No abstract record available.
Inventors
- 👤 Clarence C Davis
- 👤 Covalt Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:35
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/835; A01D34/8355
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US654617A
Cited
US1001215A
Cited
US1311382A
Cited
US1698724A
Cited
US1831658A
Cited
US2319458A
Cited
US2341486A
Cited
US2387070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |