US2454028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained roller-bearing cage
Assignee: Timken Co
•
Filing: 1945-12-22
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Granted: 1948-11-16
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Expires: 1965-12-22
Abstract
No abstract record available.
Inventors
- 👤 John B Baker
- 👤 Harold D Stover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:15
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/22; F16C19/30; F16C19/305; F16C33/00; F16C33/30; F16C33/46; F16C33/49; F16C33/494; F16C33/51; F16C33/513; F16C33/516; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49686; Y10T29/49687
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) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |