US3278403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct and simultaneous production of inorganic alkaline salts, chlorine and cathodic products
Assignee: Edison SpA
•
Filing: 1962-07-10
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Granted: 1966-10-11
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Expires: 1982-07-10
Abstract
No abstract record available.
Inventors
- 👤 Gardella Ugo
- 👤 Omacini Alberto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:58
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/14; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/30; C01B25/301; C01B9/00; C01B9/08; C01D; C01D3/00; C01D3/02; C01D5/00; C01D5/02; C01D7/00; C01D7/07; C01D9/00; C25B1/24; C25B1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A PROCESS FOR THE DIRECT AND SIMULTANEOUS PRODUCTION OF ALKALI-METAL NITRATES, CHLORINE, HYDROGEN AND NITROGEN OXIDES COMPRISING THE STEPS OF: ELECTROLYZING IN AN ELECTROLYTIC CELL, BETWEEN AN ANODE AND A CATHODE, AN AQUEOUS SOLUTION CONTAINING AT LEAST ONE ALKALI-METAL CHLORIDE AND NITRIC ACID AT A TEMPERATURE EXCEEDING THAT OF CRYSTALLIZATION OF SAID SOLUTION TO OBTAIN CHLORINE AT THE ANODE AND HYDROGEN AND NITROGEN OXIDES AT THE CATHODE; CRYSTALLIZING ALKALI-METAL NITRATE FROM THE ELECTROLYZED SOLUTION OF THE CELL; AND SEPARATING THE CRYSTALLIZED ALKALI-METAL NITRATE FROM THE ELECTROLYZED SOLUTION.
Claim 2
Dependent Claim
87 words
A PROCESS FOR THE DIRECT AND SIMULTANEOUS PRODUCTION OF ALKALI-METAL NITRATES, CHLORINE, HYDROGEN AND NITROGEN OXIDES COMPRISING THE STEPS OF: ELECTROLYZING IN AN ELECTROLYTIC CELL, BETWEEN AN ANODE AND A CATHODE, AN AQUEOUS SOLUTION CONTAINING AT LEAST ONE ALKALI-METAL CHLORIDE AND NITRIC ACID AT A TEMPERATURE EXCEEDING THAT OF CRYSTALLIZATION OF SAID SOLUTION TO OBTAIN CHLORINE AT THE ANODE AND HYDROGEN AND NITROGEN OXIDES AT THE CATHODE; CRYSTALLIZING ALKALI-METAL NITRATE FROM THE ELECTROLYZED SOLUTION OF THE CELL; AND SEPARATING THE CRYSTALLIZED ALKALI-METAL NITRATE FROM THE ELECTROLYZED SOLUTION.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |