US3384568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodialysis apparatus having chord electrodes
Assignee: Asahi Kasei Corp
•
Filing: 1963-11-19
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Granted: 1968-05-21
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Expires: 1983-11-19
Abstract
No abstract record available.
Inventors
- 👤 Kato Masaaki
- 👤 Komori Ryozo
- 👤 Fukumoto Mitsunobu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:31
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44; B01D61/46; B01D61/463; C; C02; C02F; C02F1/00; C02F1/46; C02F1/469; C02F1/4693; C02F1/4604; C02F1/461; C02F1/46104; C02F1/46109; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/46115
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3135674A
Cited
US3192143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |