US2937755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter for electric fuel pump
Assignee: ACF Industries Inc
•
Filing: 1954-09-13
•
Granted: 1960-05-24
•
Expires: 1974-09-13
Abstract
No abstract record available.
Inventors
- 👤 Alex N Szwargulski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:50
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/08; B01D39/083; B01D17/00; B01D17/08; B01D17/10; B01D2239/00; B01D2239/06; B01D2239/065; B01D2239/0654; B01D2239/12; B01D2239/1291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |