US2811233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torsional damper or coupling
Assignee: Individual
•
Filing: 1954-09-27
•
Granted: 1957-10-29
•
Expires: 1974-09-27
Abstract
No abstract record available.
Inventors
- 👤 Hindmarch Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:43
CPC Classifications
F; F16; F16D; F16D31/00; F16D31/04; B; B05; B05B; B05B11/00; B05B11/01; B05B11/04; B05B11/047; F16F; F16F15/00; F16F15/10; F16F15/16; F16F15/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |