US2461359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inhibiting acidic corrosion in wells
Assignee: Standard Oil Development Co
•
Filing: 1946-01-26
•
Granted: 1949-02-08
•
Expires: 1966-01-26
Abstract
No abstract record available.
Inventors
- 👤 Prentiss S Viles
- 👤 Elza Q Camp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:49
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/12; C10L1/1275; C23; C23F; C23F11/00; C23F11/08; C23F11/18; C23F11/182; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 0
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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) | 1952-02-08 | 1952-08-09 | 1953-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-08 | 1956-08-09 | 1957-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-08 | 1960-08-09 | 1961-02-08 | $7700.00 | Window Closed / Lapsed |