Patent US3378093A successfully refreshed from Google Patents.
US3378093A
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Center differential gear units
Assignee: Harry Ferguson Research Ltd
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Filing: 1965-10-18
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Granted: 1968-04-16
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Expires: 1985-10-18
Abstract
No abstract record available.
Inventors
- 👤 Hill Claude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:23
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; B; B60; B60K; B60K17/00; B60K17/34; B60K17/344; B60K17/346; B60K17/3462; B60K17/3465; F16H48/06; F16H48/10; F16H48/12; F16H48/16; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2228581A
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US2574986A
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US2796941A
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US2768538A
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US3107763A
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US3081836A
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US3073405A
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US3261231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |