US3490550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory coring apparatus
Assignee: Ocean Science and Engineering Inc
•
Filing: 1967-07-14
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Granted: 1970-01-20
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Expires: 1987-07-14
Abstract
No abstract record available.
Inventors
- 👤 Edward E Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:47
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/24; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/90; E21B17/00; E21B17/20; E21B17/203; E21B19/00; E21B19/02; E21B19/06; E21B19/07; E21B19/08; E21B19/084; E21B19/09; E21B19/22; E21B25/00; E21B25/18; E21B7/12; E21B7/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3125171A
Cited
US736452A
Cited
US3023820A
Cited
US3139146A
Cited
US2975846A
Cited
US3194326A
Cited
US3181628A
Cited
US3276746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |