US2665190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of waste gases containing chlorine by treatment with an alkaline nitrite solution to effect removal of the chlorine constituent therefrom
Assignee: Honeywell International Inc
•
Filing: 1950-07-28
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Granted: 1954-01-05
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Expires: 1970-07-28
Abstract
No abstract record available.
Inventors
- 👤 William J Congdon
- 👤 Charles F Weston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:10
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/68; C; C01; C01B; C01B7/00; C01B7/01
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
37 words
A PROCESS FOR THE REMOVAL OF CHLORINE FROM GASES CONTAINING THE SAME WHICH COMPRISES PASSING SAID GASES IN INTIMATE CONTACT WTH AN ALKALINE NANO2-NA2CO3 AQUEOUS SOLUTION HAVING A CONCENTRATION OF 30 TO 60 GRAMS PER LITER NANO2.
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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) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |