US3473856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal for bearing
Assignee: SKF Industries Inc
•
Filing: 1967-08-25
•
Granted: 1969-10-21
•
Expires: 1987-08-25
Abstract
No abstract record available.
Inventors
- 👤 John F Helms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:19
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C33/7816; F16C33/783; F16C33/784; F16C33/7843; F16C33/7853; F16C33/7856; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C43/00; F16C43/04; F16C43/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734757A
Cited
US2755113A
Cited
US2888304A
Cited
US3049355A
Cited
US3090628A
Cited
GB852993A
Cited
FR1223901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |