US3292936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonograph stylus
Assignee: Individual
•
Filing: 1964-06-11
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Granted: 1966-12-20
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Grado
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:49
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/44; G11B3/46; G11B3/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PHONOGRAPH STYLUS FOR USE IN COMBINATION WITH A TRANSDUCER FOR TRANSPOSING MECHANICAL VARIATIONS IN THE GROOVES OF A PHONOGRAPH RECORD INTO ELECTRICAL SIGNALS COMPRISING A BODY, SAID BODY HAVING A PAIR OF SPHERICAL GROOVE-CONTACTING SURFACES AT THE LOWER END THEREOF, SAID GROOVE-CONTACTING SURFACES FACING IN OPPOSITE DIRECTIONS AND BEING SPACED FROM EACH OTHER INDISTANCE GREATER THAN THEIR RADII, SAID BODY EXTENDING UPWARDLY FROM SAID GROOVE-CONTACTING SURFACES TO A MOUNTING PORTION BY WHICH SAID BODY IS ADAPTED TO BE MOUNTED TO SAID ELECTRICAL TRANSDUCER.
Claim 2
Dependent Claim
84 words
A PHONOGRAPH STYLUS FOR USE IN COMBINATION WITH A TRANSDUCER FOR TRANSPOSING MECHANICAL VARIATIONS IN THE GROOVES OF A PHONOGRAPH RECORD INTO ELECTRICAL SIGNALS COMPRISING A BODY, SAID BODY HAVING A PAIR OF SPHERICAL GROOVE-CONTACTING SURFACES AT THE LOWER END THEREOF, SAID GROOVE-CONTACTING SURFACES FACING IN OPPOSITE DIRECTIONS AND BEING SPACED FROM EACH OTHER INDISTANCE GREATER THAN THEIR RADII, SAID BODY EXTENDING UPWARDLY FROM SAID GROOVE-CONTACTING SURFACES TO A MOUNTING PORTION BY WHICH SAID BODY IS ADAPTED TO BE MOUNTED TO SAID ELECTRICAL TRANSDUCER.
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |