Patent US3091930A successfully refreshed from Google Patents.
US3091930A
Expired / Lapsed
US
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Hydraulic apparatus
Assignee: Dowty Hydraulic Units Ltd
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Filing: 1960-08-09
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Granted: 1963-06-04
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Expires: 1980-08-09
Abstract
No abstract record available.
Inventors
- 👤 Thoma Oswald
- 👤 Eric H Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:46
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; B; B60; B60K; B60K17/00; B60K17/04; B60K17/10; B60W; B60W10/00; B60W10/02; B60W10/10; B60W10/101; B60W10/103; B60W30/00; B60W30/18; B60W30/188; B60K17/34; B60K17/356; F16H59/00; F16H59/68; F16H2059/6838; F16H2059/6861
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |