US2566601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential transmission gearing
Assignee: FELL DEVELOPMENTS Ltd
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Filing: 1950-12-11
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Granted: 1951-09-04
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Expires: 1970-12-11
Abstract
No abstract record available.
Inventors
- 👤 Cousins Richard Joseph Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:34
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/06; F16H48/08; F16H2048/082; F16H2048/085; F16H48/38; F16H2048/385; F16H48/40; F16H2048/405
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |