Patent US3384425A successfully refreshed from Google Patents.
US3384425A
Expired / Lapsed
US
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Hydrostatic bearing
Assignee: Charles Churchill and Co Ltd
•
Filing: 1965-11-22
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Granted: 1968-05-21
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Expires: 1985-11-22
Abstract
No abstract record available.
Inventors
- 👤 Brown Graham Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:28
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/38; F16C29/00; F16C29/02; F16C29/025; F16C2322/00; F16C2322/39
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US315776A
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US466645A
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US1117504A
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US1445188A
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US2037326A
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US2785022A
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GB876171A
Cited
US3053583A
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US3052505A
Cited
US3137530A
Cited
US3132908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |