US2700431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of chlorine
Assignee: Diamond Shamrock Corp
•
Filing: 1952-05-16
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Granted: 1955-01-25
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Expires: 1972-05-16
Abstract
No abstract record available.
Inventors
- 👤 Robert C Sutter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:38
CPC Classifications
C; C01; C01B; C01B7/00; C01B7/01; C01B7/07; C01B7/0743; F; F25; F25J; F25J3/00; F25J3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PROCESS FOR PURIFYING CHLORINE FROM ORGANIC IMPURITIES WHICH COMPRISES CONDUCTING GASEOUS CHLORINE THROUGH A BODY COMPRISING LIQUID CHLORINE CONTAINED IN A SLUDGE TANK TO EFFECT REMOVAL OF HEAVY IMPURITIES AND THEN FLOWING THE GAS COUNTERCURRENTLY TO A FLOW OF LIQUID CHLORINE IN A COLUMN, AND RECOVERING THE PURIFIED GAS.
Claim 2
Dependent Claim
50 words
A PROCESS FOR PURIFYING CHLORINE FROM ORGANIC IMPURITIES WHICH COMPRISES CONDUCTING GASEOUS CHLORINE THROUGH A BODY COMPRISING LIQUID CHLORINE CONTAINED IN A SLUDGE TANK TO EFFECT REMOVAL OF HEAVY IMPURITIES AND THEN FLOWING THE GAS COUNTERCURRENTLY TO A FLOW OF LIQUID CHLORINE IN A COLUMN, AND RECOVERING THE PURIFIED GAS.
References Cited (Backward Citations)
US2318512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-24 | 1958-07-26 | 1959-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-24 | 1962-07-26 | 1963-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-24 | 1966-07-26 | 1967-01-25 | $7700.00 | Window Closed / Lapsed |