US3402784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor guidance apparatus
Assignee: Case LLC
•
Filing: 1966-08-19
•
Granted: 1968-09-24
•
Expires: 1986-08-19
Abstract
No abstract record available.
Inventors
- 👤 Raymond F Roberson
- 👤 Donald P Storm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:58
CPC Classifications
A; A01; A01B; A01B69/00; A01B69/007; A01B69/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1031065A
Cited
US2496727A
Cited
US2509914A
Cited
US2674332A
Cited
US2791167A
Cited
US3038544A
Cited
US2981355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |