US2489859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential gear for motor vehicles or the like
Assignee: Individual
•
Filing: 1945-08-31
•
Granted: 1949-11-29
•
Expires: 1965-08-31
Abstract
No abstract record available.
Inventors
- 👤 Butterworth Archibald James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:18
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/08; F16H48/27; F16H2048/085; F16H48/38; F16H48/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1324858A
Cited
US1266712A
Cited
US1277837A
Cited
US1750981A
Cited
US1916715A
Cited
US2267362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |