US2963162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil filter spool construction
Assignee: Cummins Inc
•
Filing: 1959-07-22
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Granted: 1960-12-06
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Expires: 1979-07-22
Abstract
No abstract record available.
Inventors
- 👤 Kenneth S Shaw
- 👤 Kenneth F Richards
- 👤 Paul A Lytle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:16
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D25/00; B01D25/22; B01D25/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |