US3028914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Producing multiple fractures in a cased well
Assignee: Pan American Petroleum Corp
•
Filing: 1958-09-29
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Granted: 1962-04-10
•
Expires: 1978-09-29
Abstract
No abstract record available.
Inventors
- 👤 Don H Flickinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:37
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2766828A
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US2818119A
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US2769497A
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US2927638A
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US2754910A
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US2832415A
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US2837164A
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US2851109A
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US2970645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |