Patent US2620055A successfully refreshed from Google Patents.
US2620055A
Expired / Lapsed
US
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Emergency differential device for motor vehicles
Assignee: Individual
•
Filing: 1948-07-20
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Granted: 1952-12-02
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Expires: 1968-07-20
Abstract
No abstract record available.
Inventors
- 👤 Fasulo Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:06
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/295; F16H48/06; F16H48/08; F16H48/24; F16H48/30; F16H48/34; F16H2048/305; F16H2200/00; F16H2200/20; F16H2200/203; F16H2200/2071; F16H48/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US685658A
Cited
US854530A
Cited
US1125079A
Cited
US992104A
Cited
US1026498A
Cited
US1032261A
Cited
US1186745A
Cited
US1271319A
Cited
US1252388A
Cited
US1450804A
Cited
US1466778A
Cited
US1458877A
Cited
US1488581A
Cited
US1751074A
Cited
US1835412A
Cited
US1886323A
Cited
US2137249A
Cited
FR780866A
Cited
US2159137A
Cited
US2121254A
Cited
US2304914A
Cited
US2346175A
Cited
US2389498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |