US2693720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking differential
Assignee: Individual
•
Filing: 1951-07-06
•
Granted: 1954-11-09
•
Expires: 1971-07-06
Abstract
No abstract record available.
Inventors
- 👤 Wildhaber Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:23
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/27; F16H48/06; F16H48/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1323245A
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FR364767A
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US874852A
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US1405237A
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US1635162A
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US1586309A
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US1717784A
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US1730183A
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US1859245A
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US1859462A
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US2178613A
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US2272416A
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US2489859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |