Patent US2425371A successfully refreshed from Google Patents.
US2425371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and process for improving separation of clarified liquid from a slurry by subdividing the slurry at the separation interface into a plurality of shallow streams
Assignee: Infilco Inc
•
Filing: 1943-01-07
•
Granted: 1947-08-12
•
Expires: 1963-01-07
Abstract
No abstract record available.
Inventors
- 👤 Walter H Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:14
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5281; B; B01; B01D; B01D21/00; B01D21/0039; B01D21/0045; B01D21/24; B01D21/2427; B01D21/245; B01D21/28; B01D21/286
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE57727C
Cited
US495313A
Cited
US748308A
Cited
GB190802077A
Cited
US1009857A
Cited
US1030366A
Cited
US1177849A
Cited
US1701068A
Cited
US1864866A
Cited
US2021672A
Cited
US2127314A
Cited
US2245587A
Cited
US2179246A
Cited
US2245583A
Cited
US2296437A
Cited
US2259221A
Cited
US2348122A
Cited
US2314977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-11 | 1951-02-10 | 1951-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-11 | 1955-02-10 | 1955-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-11 | 1959-02-10 | 1959-08-12 | $7700.00 | Window Closed / Lapsed |