US2565343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid separation
Assignee: Individual
•
Filing: 1948-05-15
•
Granted: 1951-08-21
•
Expires: 1968-05-15
Abstract
No abstract record available.
Inventors
- 👤 Benham Lessie Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:27
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D21/00; B01D21/0012; B01D21/10; B01D21/24; B01D21/2405; B01D21/2411
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US700826A
Cited
GB190410867A
Cited
US812831A
Cited
US952620A
Cited
US1147881A
Cited
US1116903A
Cited
US1864511A
Cited
US1636866A
Cited
US1761505A
Cited
US1921689A
Cited
GB344604A
Cited
US2301371A
Cited
US2326384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |