Patent US3363683A successfully refreshed from Google Patents.
US3363683A
Expired / Lapsed
US
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Offshore apparatus and method
Assignee: ExxonMobil Upstream Research Co
•
Filing: 1965-12-23
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Granted: 1968-01-16
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Expires: 1985-12-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles B Corley
- 👤 Martin O Pattison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:11
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/01; E21B43/0107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3177942A
Cited
GB947979A
Cited
US3221816A
Cited
US3233666A
Cited
US3220477A
Cited
US3233667A
Cited
US3299950A
Cited
US3292695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |