US2470831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preventing and/or removing accumulations of solid matter from oil wells,flow lines, and pipe lines
Assignee: Baker Petrolite LLC
•
Filing: 1947-01-02
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Granted: 1949-05-24
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Expires: 1967-01-02
Abstract
No abstract record available.
Inventors
- 👤 Louis T Monson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:05
CPC Classifications
E; E21; E21B; E21B37/00; C; C09; C09K; C09K8/00; C09K8/52; C09K8/528; Y; Y10; Y10S; Y10S507/00; Y10S507/927; Y10S507/929; Y10S507/93; Y10S507/931
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1892205A
Cited
US2395400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-23 | 1952-11-22 | 1953-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-23 | 1956-11-22 | 1957-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-23 | 1960-11-22 | 1961-05-24 | $7700.00 | Window Closed / Lapsed |