Patent US2528987A successfully refreshed from Google Patents.
US2528987A
Expired / Lapsed
US
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Ball and roller bearing
Assignee: Individual
•
Filing: 1947-12-04
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Granted: 1950-11-07
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Expires: 1967-12-04
Abstract
No abstract record available.
Inventors
- 👤 Albett Charles Antony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:42
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/60; F16C33/605; C; C10; C10K; C10K1/00; C10K1/08; C10K1/10; C10K1/12; C10K1/121; F16C19/00; F16C19/22; F16C19/24; F16C19/26; F16C2240/00; F16C2240/40; F16C2240/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US964322A
Cited
US950433A
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US955120A
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US1059839A
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US1178813A
Cited
US1319866A
Cited
US1967821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |