US2707617A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of orienting side wall cores
Assignee: Eastman Oil Well Survey Co
•
Filing: 1950-11-24
•
Granted: 1955-05-03
•
Expires: 1970-11-24
Abstract
No abstract record available.
Inventors
- 👤 Brady Edward Fay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:02
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/02; E21B47/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1932612A
Cited
US2141828A
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US2210464A
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US2358470A
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US2489566A
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US2544979A
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US2600125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-02 | 1958-11-01 | 1959-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-02 | 1962-11-01 | 1963-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-02 | 1966-11-01 | 1967-05-03 | $7700.00 | Window Closed / Lapsed |