US3397141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for separating concentrated solution of electrolyte from high viscous solution by dialysis and an apparatus therefor
Assignee: KIMURA ENTETSU
•
Filing: 1966-04-21
•
Granted: 1968-08-13
•
Expires: 1986-04-21
Abstract
No abstract record available.
Inventors
- 👤 Nakai Shiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:37
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/08; B01D63/082; B01D63/0822; B01D61/00; B01D61/24; B01D61/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US665116A
Cited
US790035A
Cited
US2040805A
Cited
GB418959A
Cited
US2187818A
Cited
US2225024A
Cited
US2247143A
Cited
US2365457A
Cited
US2399471A
Cited
US2664395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |