US3421686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing assembly
Assignee: Rolls Royce PLC
•
Filing: 1966-05-31
•
Granted: 1969-01-14
•
Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 John Frederick Coplin
- 👤 Peter Longley
- 👤 Robert Vaughan Blackhurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:13
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/16; F01D25/162; F16; F16C; F16C35/00; F16C35/04; F16C35/06; F16C35/067; F16C2360/00; F16C2360/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2270141A
Cited
US2540968A
Cited
US2724621A
Cited
US2743751A
Cited
US2928648A
Cited
US2960827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |