US3022244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic alkali-chlorine diaphragm cell
Assignee: PPG Industries Inc
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Filing: 1959-06-26
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Granted: 1962-02-20
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Expires: 1979-06-26
Abstract
No abstract record available.
Inventors
- 👤 Blanc Carrol P Le
- 👤 Jr Lewis W Henslee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:46
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/34; C25B1/46; C25B13/00; C25B13/04; C25B13/05; C25B13/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN AN ELECTROLYTIC ALKALI CHLORINE CELL HAVING AN ANODE, A FORAMINOUS CATHODE, A POROUS ASBESTORS DIAPHRAGRAM IN THE FORM OF A POROUS SHEET ON THE CATHODE AND BETWEN THE ANODE AND THE CATHODE, THUS PROVIDING AN ANODE COMPARTMENT BETWEEN THE ANODE AND THE DIAPHRAGM, MEANS FOR FEEDING BRINE INTO THE ANODE COMPARTMENT, MEANS FOR WITHDRAWING EVOLVED CHLORINE FROM THE ANODE COMPARTMENT, AND MEANS BEHIND THE FORAMINOUS
Claim 2
Dependent Claim
66 words
IN AN ELECTROLYTIC ALKALI CHLORINE CELL HAVING AN ANODE, A FORAMINOUS CATHODE, A POROUS ASBESTORS DIAPHRAGRAM IN THE FORM OF A POROUS SHEET ON THE CATHODE AND BETWEN THE ANODE AND THE CATHODE, THUS PROVIDING AN ANODE COMPARTMENT BETWEEN THE ANODE AND THE DIAPHRAGM, MEANS FOR FEEDING BRINE INTO THE ANODE COMPARTMENT, MEANS FOR WITHDRAWING EVOLVED CHLORINE FROM THE ANODE COMPARTMENT, AND MEANS BEHIND THE FORAMINOUS
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |