US2531829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inhibition of oil well corrosion
Assignee: Individual
•
Filing: 1948-01-31
•
Granted: 1950-11-28
•
Expires: 1968-01-31
Abstract
No abstract record available.
Inventors
- 👤 John L Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:18
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/12; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
30 words
THE PROCESS OF INHIBITING THE CORROSION OF OIL AND GAS WELL APPARATUS BY FLUIDS ORIGINATING IN THE WELL THAT INCLUDES THE STEP OF INJECTING AN ALKYLENE OXIDE INTO THE WELL.
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) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |