Patent US3404925A successfully refreshed from Google Patents.
US3404925A
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Bearing with hollow rings
Assignee: SKF USA Inc
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Filing: 1966-05-12
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Granted: 1968-10-08
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Expires: 1986-05-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph K Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:38
CPC Classifications
F; F16; F16C; F16C37/00; F16C37/007; F16C27/00; F16C27/04; F16C33/00; F16C33/30; F16C33/58; F16C33/588; F16C33/60; F16C33/66; F16C33/6637; F16C33/664; F16C33/6651; F16C33/6659; F16C33/6677; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C19/22; F16C19/24; F16C19/26; F16C2300/00; F16C2300/02; F16C33/6685
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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |