US2803149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shift mechanism for locking differential
Assignee: Rockwell Spring and Axle Co
•
Filing: 1954-06-11
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Granted: 1957-08-20
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Expires: 1974-06-11
Abstract
No abstract record available.
Inventors
- 👤 William L Pringle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:29
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/037; F16H48/00; F16H48/06; F16H48/08; F16H48/20; F16H48/24; F16H48/30; F16H48/34; F16H2048/082; F16H2048/201; F16H2048/305; F16H48/38; F16H48/40; F16H2048/405; F16H48/42; F16H2048/423; F16H2200/00; F16H2200/20; F16H2200/203; F16H2200/2071; F16H48/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1355297A
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US1464795A
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US1488581A
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FR56771E
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US2620055A
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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) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |