Patent US2606003A successfully refreshed from Google Patents.
US2606003A
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US
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Off-shore drilling
Assignee: Union Oil Company of California
•
Filing: 1948-08-28
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Granted: 1952-08-05
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Expires: 1968-08-28
Abstract
No abstract record available.
Inventors
- 👤 James M Mcneill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:29
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/12; E21B7/128; E21B17/00; E21B17/01; E21B17/02; E21B17/04; E21B17/07; E21B19/00; E21B19/08; E21B19/09; E21B19/14; E21B19/143; E21B3/00; E21B3/02; E21B3/04; E21B3/045
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |