US2884942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for use in corrosion inhibitor injection
Assignee: Jersey Production Research Co
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Filing: 1957-05-06
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Granted: 1959-05-05
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Expires: 1977-05-06
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Caldwell
- 👤 Norman Clarence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:40
CPC Classifications
B; B01; B01J; B01J4/00; B01J4/001; C; C23; C23F; C23F11/00; E; E21; E21B; E21B41/00; E21B41/02; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2774; Y10T137/8593; Y10T137/87571; Y10T137/87676
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) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |