US2722138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torsional vibration absorbers
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1950-11-30
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Granted: 1955-11-01
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Expires: 1970-11-30
Abstract
No abstract record available.
Inventors
- 👤 Neher Eldon Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:58
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/10; F16F15/14; F16F15/1407; F16F15/1414; F16F15/1435; F16F15/1442; F16H; F16H55/00; F16H55/32; F16H55/36; F16H2055/366; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49696; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T74/00; Y10T74/21; Y10T74/2121; Y10T74/2128
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) | 1958-10-31 | 1959-05-02 | 1959-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-31 | 1963-05-02 | 1963-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-31 | 1967-05-02 | 1967-11-01 | $7700.00 | Window Closed / Lapsed |