US2986431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pad type thrust bearings
Assignee: Napier Turbochargers Ltd
•
Filing: 1959-02-05
•
Granted: 1961-05-30
•
Expires: 1979-02-05
Abstract
No abstract record available.
Inventors
- 👤 John R W Block
- 👤 Guerin Joseph Dudley Shuldh De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:36
CPC Classifications
F; F16; F16C; F16C27/00; F16C27/08; F16C17/00; F16C17/04; F16C17/06; F16C23/00; F16C23/02; F16C33/00; F16C33/02; F16C33/04; F16C33/26; F16C39/00; F16C39/02; F16C39/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1421208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |