US2958503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bellows compensation for servo valve
Assignee: Bendix Corp
•
Filing: 1955-05-04
•
Granted: 1960-11-01
•
Expires: 1975-05-04
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Vaughn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:32
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/20; G05D16/2093; G05D16/2097; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409; Y10T137/2452
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US585377A
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US1718673A
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US2223712A
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US2310298A
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US2454946A
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US2412490A
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US2668415A
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US2718896A
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US2767725A
Cited
US2731025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |