Patent US3491536A successfully refreshed from Google Patents.
US3491536A
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Bearing assembly
Assignee: Rolls Royce PLC
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Filing: 1968-06-03
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Granted: 1970-01-27
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Expires: 1988-06-03
Abstract
No abstract record available.
Inventors
- 👤 Edward Stafford Hadaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:19
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/06; F01; F01D; F01D25/00; F01D25/16; F16; F16C; F16C19/00; F16C19/54; F16C19/55; F16C25/00; F16C25/06; F16C25/08; F16C25/083; F16C35/00; F16C35/04; F16C35/06; F16C2360/00; F16C2360/23; F16C27/00; F16C27/04
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) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |