US3692649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing carbon dioxide from gases
Assignee: Individual
•
Filing: 1969-11-07
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Granted: 1972-09-19
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Expires: 1989-11-07
Abstract
Abstract A PROCESS FOR PRODUCING OXYGEN AND EXTRACTING CARBON DIOXIDE FROM A GAS OR GASEOUS MIXTURE BY EXTRACTION WITH A BASIC SOLUTION, EVOLVING THE CARBON DIXOIDE AND OXYGEN IN THE ANODE COMPARTMENT OF AN ELECTROLYTIC CELL, AND PASSING THE DEPLETED BASE TO THE CATHODE COMPARTMENT OF THE CELL FOR REGENERATION.
Inventors
- 👤 Michel Prigent
- 👤 Claude Dezael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:08
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/02; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/62; C01; C01B; C01B32/00; C01B32/50; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y02P; Y02P20/00; Y02P20/151
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |