Patent US3344688A successfully refreshed from Google Patents.
US3344688A
Expired / Lapsed
US
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Limited slip differential
Assignee: Doosan Bobcat North America Inc
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Filing: 1965-12-29
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Granted: 1967-10-03
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Expires: 1985-12-29
Abstract
No abstract record available.
Inventors
- 👤 Barry L Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:58
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A LIMITED SLIP DIFFERENTIAL COMPRISING A ROTATABLE CASE, A SPIDER MOUNTED IN THE SAID CASE, A PAIR OF OPPOSED SIDE GEARS MOUNTED FOR ROTATION IN THE SAID CASE, A FRICTION PLATE DISPOSED BETWEEN EACH SIDE GEAR AND THE SAID CASE, EACH FRICTION PLATE HAVING TEETH ALONG THE OUTER PERIPHERY THEREOF, A PLURALITY OF PINION GEARS MOUNTED ON THE SAID SPIDER FOR ROTATION, THE SAID PINION GEARS MESHING WITH BOTH SIDE GEARS, AND A PLURALITY OF GEARS MOUNTED ON THE SAID SPIDER FOR ROTATION, EACH OF THE SAID LAST-MENTIONED
Claim 2
Dependent Claim
88 words
A LIMITED SLIP DIFFERENTIAL COMPRISING A ROTATABLE CASE, A SPIDER MOUNTED IN THE SAID CASE, A PAIR OF OPPOSED SIDE GEARS MOUNTED FOR ROTATION IN THE SAID CASE, A FRICTION PLATE DISPOSED BETWEEN EACH SIDE GEAR AND THE SAID CASE, EACH FRICTION PLATE HAVING TEETH ALONG THE OUTER PERIPHERY THEREOF, A PLURALITY OF PINION GEARS MOUNTED ON THE SAID SPIDER FOR ROTATION, THE SAID PINION GEARS MESHING WITH BOTH SIDE GEARS, AND A PLURALITY OF GEARS MOUNTED ON THE SAID SPIDER FOR ROTATION, EACH OF THE SAID LAST-MENTIONED
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |