US3368638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tandem axle change speed control system
Assignee: Eaton Corp
•
Filing: 1965-08-04
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Granted: 1968-02-13
•
Expires: 1985-08-04
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Terry
- 👤 George L Moldovan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:11
CPC Classifications
F; F16; F16H; F16H63/00; F16H63/02; F16H63/30; F16H63/3023; B; B60; B60K; B60K17/00; B60K17/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3146842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |