US2505128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve stem oil seal
Assignee: Motors Liquidation Co
•
Filing: 1945-02-19
•
Granted: 1950-04-25
•
Expires: 1965-02-19
Abstract
No abstract record available.
Inventors
- 👤 Earle S Macpherson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:24
CPC Classifications
F; F01; F01L; F01L3/00; F01L3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US940143A
Cited
US1344347A
Cited
US1370346A
Cited
US1482774A
Cited
US1420898A
Cited
US1711267A
Cited
US2330091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-24 | 1953-10-24 | 1954-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-24 | 1957-10-24 | 1958-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-24 | 1961-10-24 | 1962-04-25 | $7700.00 | Window Closed / Lapsed |