US2945559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filters for fluids
Assignee: Motors Liquidation Co
•
Filing: 1959-03-02
•
Granted: 1960-07-19
•
Expires: 1979-03-02
Abstract
No abstract record available.
Inventors
- 👤 Buckman Kenneth Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:17
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/52; B01D46/521; B01D46/523; B01D46/0084; B01D46/0091; B01D46/0093; B01D46/10; B01D2279/00; B01D2279/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1708065A
Cited
US1779458A
Cited
US2569243A
Cited
US2510440A
Cited
US2640560A
Cited
US2784802A
Cited
US2853154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |