US2568854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Journal lubricator
Assignee: NL Industries Inc
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Filing: 1947-04-05
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Granted: 1951-09-25
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Expires: 1967-04-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph T Greeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:18
CPC Classifications
B; B61; B61F; B61F17/00; B61F17/02; B61F17/04; B61F17/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |