US3296589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seismic transmission-reception system
Assignee: Individual
•
Filing: 1964-04-01
•
Granted: 1967-01-03
•
Expires: 1984-04-01
Abstract
No abstract record available.
Inventors
- 👤 Ikrath Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:53
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/143; G01V1/145; Y; Y10; Y10S; Y10S367/00; Y10S367/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A SEISMIC TRANSMISSION-RECEPTION SYSTEM COMPRISING, AN UNDAMPED TUNED SEISMIC TRANSDUCER, SAID TRANSDUCER COMPRISING THREE DRIVE COILS ATTACHED TO THE TOP OF A VERTICALLY DISPOSED SLOTTED CYLINDRICAL SLEEVE, SAID SLEEVE BEING ATTACHED AT ITS LOWER END TO A FLAT BASE WHICH RESTS ON THE EARTH AND MEANS TO PRODUCE A DIRECT MAGNETIC FIELD WHICH CROSSES THE TURNS OF SAID COILS AT RIGHT ANGLES; SWITCH MEANS FOR SEQUENTIALLY AND REPEATEDLY CONNECTING
Claim 2
Dependent Claim
69 words
A SEISMIC TRANSMISSION-RECEPTION SYSTEM COMPRISING, AN UNDAMPED TUNED SEISMIC TRANSDUCER, SAID TRANSDUCER COMPRISING THREE DRIVE COILS ATTACHED TO THE TOP OF A VERTICALLY DISPOSED SLOTTED CYLINDRICAL SLEEVE, SAID SLEEVE BEING ATTACHED AT ITS LOWER END TO A FLAT BASE WHICH RESTS ON THE EARTH AND MEANS TO PRODUCE A DIRECT MAGNETIC FIELD WHICH CROSSES THE TURNS OF SAID COILS AT RIGHT ANGLES; SWITCH MEANS FOR SEQUENTIALLY AND REPEATEDLY CONNECTING
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |