US3189098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine conductor pipe assembly
Assignee: Shell USA Inc
•
Filing: 1961-12-29
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Granted: 1965-06-15
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 John A Haeber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/06; E21B33/064; E21B17/00; E21B17/01; E21B33/035; F; F16; F16L; F16L37/00; F16L37/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2606003A
Cited
US2923531A
Cited
GB873482A
Cited
GB874178A
Cited
US2990851A
Cited
US3071188A
Cited
US3041090A
Cited
US3052299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |