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US3016014A
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Perforating apparatus
Assignee: Schlumberger Well Surveying Corp
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Filing: 1955-05-23
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Granted: 1962-01-09
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Expires: 1975-05-23
Abstract
No abstract record available.
Inventors
- 👤 Maurice P Lebourg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:14
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; E21B43/116; E21B43/118; F; F42; F42B; F42B1/00; F42B1/02; F42B3/00; F42B3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2140813A
Cited
FR999974A
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US2664156A
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GB701074A
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US2853944A
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US2766690A
Cited
US2819673A
Cited
US2799224A
Cited
US2876843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |