US2142931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller bearing
Assignee: Timken Co
•
Filing: 1938-06-22
•
Granted: 1939-01-03
•
Expires: 1958-06-22
Abstract
No abstract record available.
Inventors
- 👤 John B Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:51
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/22; F16C19/34; F16C19/36; F16C19/364; F16C35/00; F16C35/04; F16C35/06; F16C37/00; F16C37/007; F16C19/52; F16C19/525
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-01-02 | 1942-07-04 | 1943-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-01-02 | 1946-07-04 | 1947-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-01-02 | 1950-07-04 | 1951-01-03 | $7700.00 | Window Closed / Lapsed |