US3398587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined hitch and power train coupling assembly for tractors
Assignee: Case LLC
•
Filing: 1967-06-28
•
Granted: 1968-08-27
•
Expires: 1987-06-28
Abstract
No abstract record available.
Inventors
- 👤 Frank M Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:39
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/02; A01D34/03; A01B; A01B51/00; A01B51/02; A01B51/026; A01B71/00; B; B60; B60K; B60K17/00; B60K17/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2618979A
Cited
US3349631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |