US2690110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hitch for spike toothed harrows
Assignee: Ford Motor Co
•
Filing: 1949-12-03
•
Granted: 1954-09-28
•
Expires: 1969-12-03
Abstract
No abstract record available.
Inventors
- 👤 Harry G Crouch
- 👤 Clarence B Richey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:16
CPC Classifications
A; A01; A01B; A01B23/00; A01B23/04; A01B23/043; A01B73/00; A01B73/02; A01B73/04; A01B73/044; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1540549A
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US1913069A
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US2064269A
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US2321516A
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US2286619A
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GB556859A
Cited
US2336152A
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US2498888A
Cited
US2444321A
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GB628907A
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US2591028A
Cited
US2551870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |