US3249678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric organ and appurtenances
Assignee: DH Baldwin Co
•
Filing: 1962-03-05
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Granted: 1966-05-03
•
Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 Edward M Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:01
CPC Classifications
G; G10; G10H; G10H3/00; G10H3/03; G10H3/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
IN A PHOTOELECTRIC MUSICAL INSTRUMENT HAVING A STATIONARY DISC WITH LIGHT-IMPULSE MODIFYING MEANS THEREON, AND UTILIZING PHOTOCELL ARRAYS OF THE OPEN TYPE, A SEALED CHAMBER COMPRISING A BASE PLATE IN PROXIMITY TO SAID DISC, PERIPHERAL SEALING MEANS BETWEEN MARGINAL PORTIONS OF SAID PLATE AND DISC, THERE BEING A SPACE BETWEEN SAID PLATE AND DISC WITHIN THE CONFINES OF SAID MARGINAL PORTIONS, AND AT LEAST ONE PHOTOCELL ARRAY MOUNTED ON SAID PLATE WITHIN SAID SPACE, SAID PHOTOCELL ARRAY CONSISTING OF A PLURALITY OF THREE-ELEMENT PHOTOCELLS ON A SUBSTRATE, SAID ARRAY COMPRISING OPPOSED COMMON ELECTRODES HAVING BODIES WITH BRANCHES EXTENDING TOWARD EACH OTHER IN INTERDIGITATING RELATIONSHIP, AND ADDITIONAL ELECTRODES INTERMEDIATE SAID BRANCHES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |