US2581314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating apparatus
Assignee: Stewart Warner Corp
•
Filing: 1947-03-27
•
Granted: 1952-01-01
•
Expires: 1967-03-27
Abstract
No abstract record available.
Inventors
- 👤 Jerome F Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:19
CPC Classifications
F; F16; F16N; F16N27/00; F16N2230/00; F16N2230/10; F16N2270/00; F16N2270/20; F16N2270/30; F16N2270/32; F16N7/00; F16N7/38; F16N7/385
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2048003A
Cited
US2339532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |