US2933715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seismic device
Assignee: Seismos Fa GmbH
•
Filing: 1957-04-19
•
Granted: 1960-04-19
•
Expires: 1977-04-19
Abstract
No abstract record available.
Inventors
- 👤 Benermann Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:40
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/16; G01V1/18; G01V1/181
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1784415A
Cited
US2269453A
Cited
US2348225A
Cited
US2576775A
Cited
US2683867A
Cited
US2756406A
Cited
US2788512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |