US2991664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid lock differential
Assignee: Motors Liquidation Co
•
Filing: 1957-10-18
•
Granted: 1961-07-11
•
Expires: 1977-10-18
Abstract
No abstract record available.
Inventors
- 👤 Ralph J Bernotas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:05
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/08; F16H48/30; F16H48/34; F16H2048/082; F16H2048/204; F16H48/38; F16H2048/385; F16H48/42; F16H2048/423; F16H2048/426; F16H2200/00; F16H2200/20; F16H2200/203; F16H2200/2071; F16H48/32; F16H48/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2734398A
Cited
US2165358A
Cited
DE679643C
Cited
US2126849A
Cited
US2248435A
Cited
US2268605A
Cited
US2580381A
Cited
US2643746A
Cited
US2642972A
Cited
FR1083711A
Cited
US2711808A
Cited
US2830670A
Cited
US2768538A
Cited
US2861477A
Cited
US2894416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |