US2600761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Offshore drilling means
Assignee: Individual
•
Filing: 1948-12-06
•
Granted: 1952-06-17
•
Expires: 1968-12-06
Abstract
No abstract record available.
Inventors
- 👤 Erle P Halliburton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:41
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/04; E02B17/08; E02B17/0809; E02B17/02; E02B17/021; E02B2017/0056; E02B2017/0073; E02B2017/0082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US428141A
Cited
GB191201112A
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US1718006A
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US1892125A
Cited
US2248051A
Cited
US2237387A
Cited
US2308743A
Cited
US2334992A
Cited
US2327118A
Cited
US2398351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |