Patent US2559936A successfully refreshed from Google Patents.
US2559936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtering apparatus for liquids
Assignee: SERVICES IND DE GENEVE
•
Filing: 1946-12-03
•
Granted: 1951-07-10
•
Expires: 1966-12-03
Abstract
No abstract record available.
Inventors
- 👤 Buffle Jean Philibert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:36
CPC Classifications
B; B01; B01D; B01D24/00; B01D24/46; B01D24/4631; B01D24/4636; B01D24/02; B01D24/20; B01D24/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE311593C
Cited
FR541011A
Cited
US1572398A
Cited
US1698079A
Cited
US1805667A
Cited
GB494934A
Cited
US2263964A
Cited
US2354609A
Cited
US2378239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |