Patent US2719667A successfully refreshed from Google Patents.
US2719667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating system for rotating equipment having a vertical shaft
Assignee: Ohio Crankshaft Co
•
Filing: 1951-01-11
•
Granted: 1955-10-04
•
Expires: 1971-01-11
Abstract
No abstract record available.
Inventors
- 👤 Edward J Kaczor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:04
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/66; F16C33/6637; F16C33/6659; F16N; F16N39/00; F16N39/06; F16N7/00; F16N7/36; F16N7/366; F16H; F16H57/00; F16H57/04; F16H57/042; F16H57/0427; F16H57/0428; F16H57/0467; F16H57/0469; F16H57/0471; F16N13/00; F16N13/20; F16N2013/205
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US980001A
Cited
US1757289A
Cited
US1868814A
Cited
US1986539A
Cited
US1991623A
Cited
US2486478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-03 | 1959-04-04 | 1959-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-03 | 1963-04-04 | 1963-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-03 | 1967-04-04 | 1967-10-04 | $7700.00 | Window Closed / Lapsed |