US2906504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubrication of bearings
Assignee: Jersey Production Research Co
•
Filing: 1958-08-07
•
Granted: 1959-09-29
•
Expires: 1978-08-07
Abstract
No abstract record available.
Inventors
- 👤 Mercer H Parks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:46
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/08; E21B10/22; E21B10/24; E21B10/246
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1238757A
Cited
US1708288A
Cited
US1487319A
Cited
US1576370A
Cited
US2072180A
Cited
US2814465A
Cited
US2692803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |