US2677322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-operated system for tractors
Assignee: Ferguson Harry Inc
•
Filing: 1949-06-16
•
Granted: 1954-05-04
•
Expires: 1969-06-16
Abstract
No abstract record available.
Inventors
- 👤 Ernest V Bunting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:27
CPC Classifications
A; A01; A01B; A01B61/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7738; Y10T137/7837; Y10T137/7876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1644265A
Cited
USRE22642E
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US1661973A
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US1677446A
Cited
US1720705A
Cited
US2118180A
Cited
US2118181A
Cited
US2437875A
Cited
US2521503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |