US2822889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorine purification
Assignee: Diamond Shamrock Corp
•
Filing: 1955-09-26
•
Granted: 1958-02-11
•
Expires: 1975-09-26
Abstract
No abstract record available.
Inventors
- 👤 Robert C Sutter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:05
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/08; C; C01; C01B; C01B7/00; C01B7/01; C01B7/07; C01B7/0743
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
IN A PROCESS FOR PURIFYING CHLORINE HAVING ORGANIC IMPURITIES ASSOCIATED THEREWITH, THE IMPROVEMENT WHICH INCLUDES INTRODUCING SUPERHEATED GASEOUS CHLORINE INTO A BODY OF LIQUID CHLORINE BENEATH THE SURFACE THEREOF,
Claim 2
Dependent Claim
29 words
IN A PROCESS FOR PURIFYING CHLORINE HAVING ORGANIC IMPURITIES ASSOCIATED THEREWITH, THE IMPROVEMENT WHICH INCLUDES INTRODUCING SUPERHEATED GASEOUS CHLORINE INTO A BODY OF LIQUID CHLORINE BENEATH THE SURFACE THEREOF,
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) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |