Patent US3360772A successfully refreshed from Google Patents.
US3360772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Geophone
Assignee: MASSA DONALD P COHASSET
•
Filing: 1966-05-26
•
Granted: 1967-12-26
•
Expires: 1986-05-26
Abstract
No abstract record available.
Inventors
- 👤 Massa Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:32
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/16; G01V1/18; G01V1/181
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN COMBINATION IN AN ELECTROACOUSTIC TRANSDUCER CAPABLE OF BEING COUPLED TO THE GROUND SURFACE FOR DETECTING GROUND VIBRATIONS, A RIGID BASE HOUSING, MEANS FOR COUPLING SAID HOUSING TO THE GROUND SURFACE TO PICK-UP THE VIBRATIONS THEREOF, A VIBRATILE ELEMENT CAPABLE OF CONVERTING PICKED-UP MECHANICAL VIBRATIONS TO ELECTRICAL OSCILLATIONS, AND MEANS FOR SUPPORTING SAID VIBRATILE ELEMENT AT THE PERIPHERY THEREOF BY ATTACHING A PORTION OF SAID VIBRATILE ELEMENT TO SAID BASE HOUSING SO THAT THE PICKEDUP VIBRATIONS OF SAID BASE HOUSING ARE TRANSFERRED TO SAID ATTACHED VIBRATILE ELEMENT, THE RESONANT FREQUENCY OF SAID VIBRATILE ELEMENT LYING IN THE FREQUENCY RANGE BELOW ONE KILOCYCLE PER SECOND.
Claim 2
Dependent Claim
104 words
IN COMBINATION IN AN ELECTROACOUSTIC TRANSDUCER CAPABLE OF BEING COUPLED TO THE GROUND SURFACE FOR DETECTING GROUND VIBRATIONS, A RIGID BASE HOUSING, MEANS FOR COUPLING SAID HOUSING TO THE GROUND SURFACE TO PICK-UP THE VIBRATIONS THEREOF, A VIBRATILE ELEMENT CAPABLE OF CONVERTING PICKED-UP MECHANICAL VIBRATIONS TO ELECTRICAL OSCILLATIONS, AND MEANS FOR SUPPORTING SAID VIBRATILE ELEMENT AT THE PERIPHERY THEREOF BY ATTACHING A PORTION OF SAID VIBRATILE ELEMENT TO SAID BASE HOUSING SO THAT THE PICKEDUP VIBRATIONS OF SAID BASE HOUSING ARE TRANSFERRED TO SAID ATTACHED VIBRATILE ELEMENT, THE RESONANT FREQUENCY OF SAID VIBRATILE ELEMENT LYING IN THE FREQUENCY RANGE BELOW ONE KILOCYCLE PER SECOND.
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |