US2942666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wireline plugging device
Assignee: Jersey Production Research Co
•
Filing: 1956-12-27
•
Granted: 1960-06-28
•
Expires: 1976-12-27
Abstract
No abstract record available.
Inventors
- 👤 Martin E True
- 👤 Boer George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:11
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1295; E21B33/127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2286365A
Cited
US2638165A
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US2643722A
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US2568944A
Cited
US2781852A
Cited
US2781853A
Cited
US2751011A
Cited
US2781854A
Cited
US2784790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |