US2580072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary hydraulic torque converter
Assignee: Bendix Aviation Corp
•
Filing: 1947-05-02
•
Granted: 1951-12-25
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Expires: 1967-05-02
Abstract
No abstract record available.
Inventors
- 👤 Richard T Burnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:55
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/48; F16H61/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2372326A
Cited
US1863128A
Cited
US2096070A
Cited
US2205054A
Cited
US2384841A
Cited
US2380074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |