US2919964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Journal box lubrication
Assignee: Individual
•
Filing: 1956-12-24
•
Granted: 1960-01-05
•
Expires: 1976-12-24
Abstract
No abstract record available.
Inventors
- 👤 Leonard T Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:10
CPC Classifications
B; B61; B61F; B61F17/00; B61F17/02; B61F17/04; B61F17/06; B61F17/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1831812A
Cited
US2150935A
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US2074693A
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US2264250A
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US2279354A
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US2480790A
Cited
US2586477A
Cited
US2657958A
Cited
US2713524A
Cited
US2807803A
Cited
US2856248A
Cited
US2825609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |