Patent US2559580A successfully refreshed from Google Patents.
US2559580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of aqueous amine solutions against oxidation and corrosion in gas separation processes
Assignee: Girdler Corp
•
Filing: 1947-01-30
•
Granted: 1951-07-10
•
Expires: 1967-01-30
Abstract
No abstract record available.
Inventors
- 👤 Bruce T Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:57
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/62; C; C10; C10K; C10K1/00; C10K1/08; C10K1/10; C10K1/12; C10K1/14; C10K1/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
IN PROCESSES OF THE TYPE EMPLOYING AN AQUEOUS AMINE SOLUTION TO SEPARATE MIXED GASES, THE METHOD OF REDUCING THE TENDENCY OF THE AMINE SOLUTION TO ENTER INTO UNDESIRED REACTIONS WHICH CONSISTS IN INCORPORATING IN THE AMINE SOLUTION STABILIZING MATERIAL CONTAINING CU AND I AND CAPABLE OF ENSURING THE SIMULTANEOUS PRESENCE IN THE REACTION CYCLE OF COPPER IONS AND IODINE IONS.
Claim 2
Dependent Claim
60 words
IN PROCESSES OF THE TYPE EMPLOYING AN AQUEOUS AMINE SOLUTION TO SEPARATE MIXED GASES, THE METHOD OF REDUCING THE TENDENCY OF THE AMINE SOLUTION TO ENTER INTO UNDESIRED REACTIONS WHICH CONSISTS IN INCORPORATING IN THE AMINE SOLUTION STABILIZING MATERIAL CONTAINING CU AND I AND CAPABLE OF ENSURING THE SIMULTANEOUS PRESENCE IN THE REACTION CYCLE OF COPPER IONS AND IODINE IONS.
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) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |