Patent US3305472A successfully refreshed from Google Patents.
US3305472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purifying water with bromine
Assignee: Dow Chemical Co
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Filing: 1963-03-13
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Granted: 1967-02-21
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Expires: 1983-03-13
Abstract
No abstract record available.
Inventors
- 👤 Charles F Oldershaw
- 👤 Joseph F Valle-Riestra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:40
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/467; C02F1/4672; C02F1/4674; C02F1/46104; C25; C25B; C25B1/00; C25B1/01; C25B1/24; C02F1/001; C02F1/46109; C02F2001/46152; C02F2103/00; C02F2103/42; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4612; C02F2201/46125; C02F2201/4613; C02F2201/46145; C02F2303/00; C02F2303/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
AN ELECTROLYTIC CELL COMPRISING A PAIR OF ELECTRODE BANKS, EACH BANK CONTAINING A PLURALITY OF FLAT PARALLED ELECTRODES WHICH DEFINE PARALLEL SLOTS, SAID BANKS BEING MOUNTED IN SUCH A MANNER THAT THE SLOTS DEFINED BY THE ELECTRODES IN EACH BANK ARE PARALLEL TO THE DIRECTION OF FLOW OF THE LIQUID TO BE ELECTROLYZED, A SUBSTANTIALLY RECTANGULAR CASE OF INSULATING MATERIAL SURROUNDING SAID ELECTRODE BANKS, DIVIDER MEANS DEFINING COMPARTMENTS WITHIN SAID CASE AT EACH END OF SAID ELECTRODE BANKS WHEREBY SAID LIQUID TO BE ELECTROLYZED IS CAUSED TO PASS TO THE LENGTH OF SAID ELEC-
Claim 2
Dependent Claim
94 words
AN ELECTROLYTIC CELL COMPRISING A PAIR OF ELECTRODE BANKS, EACH BANK CONTAINING A PLURALITY OF FLAT PARALLED ELECTRODES WHICH DEFINE PARALLEL SLOTS, SAID BANKS BEING MOUNTED IN SUCH A MANNER THAT THE SLOTS DEFINED BY THE ELECTRODES IN EACH BANK ARE PARALLEL TO THE DIRECTION OF FLOW OF THE LIQUID TO BE ELECTROLYZED, A SUBSTANTIALLY RECTANGULAR CASE OF INSULATING MATERIAL SURROUNDING SAID ELECTRODE BANKS, DIVIDER MEANS DEFINING COMPARTMENTS WITHIN SAID CASE AT EACH END OF SAID ELECTRODE BANKS WHEREBY SAID LIQUID TO BE ELECTROLYZED IS CAUSED TO PASS TO THE LENGTH OF SAID ELEC-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |