US2357559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sweetening sour gas and preventing corrosion of oil producing wells
Assignee: ODESSA CHEMICAL AND EQUIPMENT
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Filing: 1942-08-24
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Granted: 1944-09-05
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Expires: 1962-08-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas O Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:58
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/16; C23F11/163; C09; C09K; C09K8/00; C09K8/54; C10; C10L; C10L1/00; C10L1/10; C10L1/12; C10L1/1233; C10L1/1241; C10L1/1266; C10L1/14; C10L1/24; C10L1/2431; C10L1/2437; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-09-05 | 1948-03-06 | 1948-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-09-05 | 1952-03-06 | 1952-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-09-05 | 1956-03-06 | 1956-09-05 | $7700.00 | Window Closed / Lapsed |