Patent US2425848A successfully refreshed from Google Patents.
US2425848A
Expired / Lapsed
US
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Portable flushing and filtering unit
Assignee: Individual
•
Filing: 1945-04-02
•
Granted: 1947-08-19
•
Expires: 1965-04-02
Abstract
No abstract record available.
Inventors
- 👤 Vawter Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:36
CPC Classifications
B; B01; B01D; B01D35/00; B01D25/00; B01D29/00; B01D37/00; Y; Y10; Y10S; Y10S210/00; Y10S210/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1305735A
Cited
US1951809A
Cited
US1652423A
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US1870885A
Cited
US2073026A
Cited
US2068394A
Cited
US2065384A
Cited
US2217329A
Cited
US2325169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-18 | 1951-02-17 | 1951-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-18 | 1955-02-17 | 1955-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-18 | 1959-02-17 | 1959-08-19 | $7700.00 | Window Closed / Lapsed |