US2759778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed bearing
Assignee: NORMA HOFFMAN BEARINGS CORP
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Filing: 1954-08-31
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Granted: 1956-08-21
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Expires: 1974-08-31
Abstract
No abstract record available.
Inventors
- 👤 Warren D Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:31
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/60; F16C33/605; F16C19/00; F16C19/22; F16C19/24; F16C19/26; F16C33/66; F16C33/6603; F16C33/6607; F16C33/6618; F16C33/72; F16C33/76; F16C33/78; F16C33/784; F16C33/7859; F16C33/80; F16J; F16J9/00; F16J9/12; F16J9/14
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) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |