Patent US3124635A successfully refreshed from Google Patents.
US3124635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric musical instruments and the like
Assignee: —
•
Filing: —
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Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:31
CPC Classifications
G; G21; G21J; G21J5/00; G10; G10H; G10H3/00; G10H3/03; G10H3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A PHOTOELECTRIC MUSICAL INSTRUMENT, A PHOTOCELL ARRAY ON AN INSULATIVE SUPPORT, SAID ARRAY COMPRISING A PLURALITY OF PHOTOCELLS EACH WITH THREE ELECTRODES FORMED AS METALLIC COATINGS ON SAID SUPPORT, THE INTERCONNECTED BY PHOTOSENSITIVE MATERIAL, EACH PHOTOCELL COMPRISING AN INTERMEDIATE ELECTRODE AND OUTER ELECTRODES, MEANS MOVING WITH RESPECT TO SAID INSULATIVE SUPPORT TO SUBJECT THE INDIVIDUAL PHOTOCELLS TO RAYS OF LIGHT PRODUCTIVE OF ELECTRICAL VIBRATIONS AT MUSICAL FREQUENCIES, SELECTIVE MEANS FOR APPLYING POLARIZING POTENTIAL TO THE INTERMEDIATE ELECTRODES, AND MEANS FOR CONNECTING THE OUTER ELECTRODES OF EACH PHOTOCELL WITH AN AMPLIFIER SYSTEM OF BALANCED TYPE, WHEREIN THE DIRECT CURRENT COMPONENTS IN THE SAID OUTER
Claim 2
Dependent Claim
104 words
IN A PHOTOELECTRIC MUSICAL INSTRUMENT, A PHOTOCELL ARRAY ON AN INSULATIVE SUPPORT, SAID ARRAY COMPRISING A PLURALITY OF PHOTOCELLS EACH WITH THREE ELECTRODES FORMED AS METALLIC COATINGS ON SAID SUPPORT, THE INTERCONNECTED BY PHOTOSENSITIVE MATERIAL, EACH PHOTOCELL COMPRISING AN INTERMEDIATE ELECTRODE AND OUTER ELECTRODES, MEANS MOVING WITH RESPECT TO SAID INSULATIVE SUPPORT TO SUBJECT THE INDIVIDUAL PHOTOCELLS TO RAYS OF LIGHT PRODUCTIVE OF ELECTRICAL VIBRATIONS AT MUSICAL FREQUENCIES, SELECTIVE MEANS FOR APPLYING POLARIZING POTENTIAL TO THE INTERMEDIATE ELECTRODES, AND MEANS FOR CONNECTING THE OUTER ELECTRODES OF EACH PHOTOCELL WITH AN AMPLIFIER SYSTEM OF BALANCED TYPE, WHEREIN THE DIRECT CURRENT COMPONENTS IN THE SAID OUTER
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |