Patent US3514947A successfully refreshed from Google Patents.
US3514947A
Expired / Lapsed
US
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Control systems
Assignee: ZF International UK Ltd
•
Filing: 1968-11-05
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Granted: 1970-06-02
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Expires: 1988-11-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph Lewis Bloom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:02
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/26; F02C9/32; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/108; Y10T137/1098
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2689606A
Cited
US3139892A
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US3092966A
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US3085397A
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US3175358A
Cited
US3091925A
Cited
US3076311A
Cited
GB892857A
Cited
US3131750A
Cited
US3310939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |