Patent US2944524A successfully refreshed from Google Patents.
US2944524A
Expired / Lapsed
US
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Engaging means for hydraulic servo system
Assignee: Bendix Aviation Corp
•
Filing: 1954-08-10
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Granted: 1960-07-12
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Expires: 1974-08-10
Abstract
No abstract record available.
Inventors
- 👤 Brandstadter Jack Maxwell
- 👤 Mcwilliams Charles Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:23
CPC Classifications
F; F15; F15B; F15B21/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/8659; Y10T137/86598
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2429189A
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US2611560A
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US2604074A
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US2620772A
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US2618292A
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US2649841A
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US2751752A
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US2738772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |