US2859637A
Expired / Lapsed
US
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Torsionally resilient flexible flywheel couplings
Assignee: Individual
•
Filing: 1956-03-19
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Granted: 1958-11-11
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Expires: 1976-03-19
Abstract
No abstract record available.
Inventors
- 👤 Hagenlocher Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:55
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/10; F16F15/12; F16F15/121; F16F15/127; F16D; F16D3/00; F16D3/50; F16F15/14; F16F15/1407; F16F15/1414; F16F15/1435; F16F15/1442; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2121; Y10T74/2131
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) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |