US2589154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston ring
Assignee: SKF Automotive Products Inc
•
Filing: 1947-10-02
•
Granted: 1952-03-11
•
Expires: 1967-10-02
Abstract
No abstract record available.
Inventors
- 👤 Dallas M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:55
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/06; F16J9/064; F16J9/066; F16J9/067; F16J9/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1195305A
Cited
US1381047A
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US1755673A
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US1781207A
Cited
US1844214A
Cited
US2212042A
Cited
US2272631A
Cited
US2294519A
Cited
US2394408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |