US3512277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for two-engine vehicle
Assignee: Doosan Bobcat North America Inc
•
Filing: 1967-03-15
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Granted: 1970-05-19
•
Expires: 1987-03-15
Abstract
No abstract record available.
Inventors
- 👤 Howard E Stuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:53
CPC Classifications
B; B60; B60K; B60K5/00; B60K5/08; B62; B62D; B62D49/00; B62D49/06; B62D49/0621; B62D49/0642
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3184919A
Cited
US3148506A
Cited
US3296715A
Cited
US3346972A
Cited
US3386344A
Cited
US3381396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |