US2792123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repackable filter cartridge
Assignee: ERIE METER SYSTEMS Inc
•
Filing: 1953-05-05
•
Granted: 1957-05-14
•
Expires: 1973-05-05
Abstract
No abstract record available.
Inventors
- 👤 John A Donato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:25
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/30; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/23; B01D2201/00; B01D2201/30; B01D2201/301; B01D2201/40; B01D2201/4015
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1830742A
Cited
US2031935A
Cited
US2218339A
Cited
US2203668A
Cited
US2381141A
Cited
US2550853A
Cited
US2559133A
Cited
US2614694A
Cited
US2707611A
Cited
US2689048A
Cited
US2601404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |