Patent US2866522A successfully refreshed from Google Patents.
US2866522A
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Lubricating arrangements for bearings of rotatable shafts
Assignee: Rolls Royce PLC
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Filing: 1955-07-25
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Granted: 1958-12-30
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Expires: 1975-07-25
Abstract
No abstract record available.
Inventors
- 👤 Walton Frederick William
- 👤 Wilkinson Wilfred Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:42
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/18; F16; F16C; F16C19/00; F16C19/22; F16C19/24; F16C19/26; F16C19/54; F16C19/55; F16C2360/00; F16C2360/23; F16C33/00; F16C33/30; F16C33/66; F16C33/6637; F16C33/6659; F16C33/6677
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB610010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |