US3375896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low-frequency vibratory seismic surveying
Assignee: Pan American Petroleum Corp
•
Filing: 1966-04-15
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Granted: 1968-04-02
•
Expires: 1986-04-15
Abstract
No abstract record available.
Inventors
- 👤 Dearal W Beddo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:57
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3066754A
Cited
US3259878A
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US3273113A
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US3286228A
Cited
US3221298A
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US3234504A
Cited
US3209322A
Cited
US3264606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |