Patent US2559944A successfully refreshed from Google Patents.
US2559944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential gearing
Assignee: Individual
•
Filing: 1948-09-28
•
Granted: 1951-07-10
•
Expires: 1968-09-28
Abstract
No abstract record available.
Inventors
- 👤 Chapp Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:48
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/08; F16H48/295; F16H48/30; F16H2048/305; F16H48/38; F16H2048/385; F16H48/40; F16H2048/405; F16H48/42; F16H2048/423
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1173442A
Cited
US1481889A
Cited
US1447116A
Cited
US1506915A
Cited
US1546064A
Cited
US1630210A
Cited
US1743032A
Cited
US1857746A
Cited
US1791198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |