Patent US3025916A successfully refreshed from Google Patents.
US3025916A
Expired / Lapsed
US
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Apparatus for inserting tools into submarine open bore holes
Assignee: ExxonMobil Oil Corp
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Filing: 1957-10-14
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Granted: 1962-03-20
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Expires: 1977-10-14
Abstract
No abstract record available.
Inventors
- 👤 Gilbert R Frick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:43
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/12; E21B7/128; E21B41/00; E21B41/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US962019A
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US1691715A
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US1967517A
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US2171672A
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US2606003A
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US2676787A
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US2808230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |