US3070233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid filter element
Assignee: Motors Liquidation Co
•
Filing: 1956-11-30
•
Granted: 1962-12-25
•
Expires: 1976-11-30
Abstract
No abstract record available.
Inventors
- 👤 Russell K Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:58
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/23; B01D29/27; B01D29/15; B01D29/21; B01D29/213
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1810965A
Cited
US1928049A
Cited
US2023423A
Cited
US2100951A
Cited
US2202403A
Cited
US2587693A
Cited
US2685371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |