US3420589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitized tapered roller bearing
Assignee: Timken Co
•
Filing: 1966-08-31
•
Granted: 1969-01-07
•
Expires: 1986-08-31
Abstract
No abstract record available.
Inventors
- 👤 Walter F Green
- 👤 Robert L Williams
- 👤 Wyn E Mccoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:16
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/22; F16C19/34; F16C19/36; F16C19/364; F16C19/225; F16C33/00; F16C33/30; F16C33/58; F16C33/60; F16C33/605; F16C43/00; F16C43/04; F16C19/54; F16C19/546; F16C19/547; F16C19/548; F16C2240/00; F16C2240/40; F16C2240/70; F16C2240/80; F16C2240/82; F16C2240/84; F16C2352/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1194918A
Cited
US1375022A
Cited
US1976613A
Cited
US2040741A
Cited
US2130258A
Cited
GB680978A
Cited
US3208804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |