US2720797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
V-belt drive differential gear mechanisms
Assignee: Individual
•
Filing: 1954-02-19
•
Granted: 1955-10-18
•
Expires: 1974-02-19
Abstract
No abstract record available.
Inventors
- 👤 Huddleston Leo Delmar
- 👤 Huddleston Helen Letha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:08
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/04; B60K17/16; F; F16; F16H; F16H48/00; F16H48/06; F16H48/08; F16H48/38; F16H2048/385
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1315217A
Cited
US872269A
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US1158439A
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US1428346A
Cited
US1657374A
Cited
US1660113A
Cited
US2408926A
Cited
US2646689A
Cited
US2548258A
Cited
US2680972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |