US2981570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recirculating roller bearing
Assignee: Timken US LLC
•
Filing: 1957-09-23
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Granted: 1961-04-25
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Expires: 1977-09-23
Abstract
No abstract record available.
Inventors
- 👤 Robert H White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:06
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/04; F16C29/06; F16C29/0614; F16C29/0616; F16C29/0619; F16C29/068; F16C29/0692; F16D; F16D3/00; F16D3/02; F16D3/06; F16D3/065
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) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |