US3485737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for continuous separation of ions involving electromigration in a packed resin chamber
Assignee: Mitsubishi Chemical Corp
•
Filing: 1967-01-03
•
Granted: 1969-12-23
•
Expires: 1987-01-03
Abstract
No abstract record available.
Inventors
- 👤 Hidetake Kakihana
- 👤 Takuya Gondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:57
CPC Classifications
B; B01; B01J; B01J47/00; B01J47/02; B01J47/06; B01J47/08; B01D; B01D57/00; B01D57/02; B01D59/00; B01D59/38; B01D59/42
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB679278A
Cited
US2645610A
Cited
US2555487A
Cited
US2678132A
Cited
GB716875A
Cited
US2741591A
Cited
US2812300A
Cited
GB815154A
Cited
US3014855A
Cited
US3085956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |