US3383453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Percussion circuit for electronic organs
Assignee: ELECTRO MUSIC
•
Filing: 1965-06-28
•
Granted: 1968-05-14
•
Expires: 1985-06-28
Abstract
No abstract record available.
Inventors
- 👤 Paul H Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:16
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/053; G10H1/057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN AN ELECTRICAL MUSICAL INSTRUMENT: AN ELECTRICALLY OPERATED GENERATING DEVICE THAT PRODUCES A SIGNAL CORRESPONDING TO A MUSICAL TONE WITH AN INTENSITY RELATED DIRECTLY TO THE INTENSITY OF ELECTRICAL ENERGIZATION: AN OPERATING CAPACITOR; AN OPERATING CIRCUIT FOR SAID GENERATING DEVICE INCLUDING SAID OPERATING CAPACITOR; A SINGLE POLE KEY SWITCH COOPERABLE WITH A SOURCE OF DIRECT CURRENT; A CONTROL CAPACITOR; CIRCUIT MEANS PROVIDING CHARGING AND DISCHARGING CIRCUITS FOR SAID CONTROL CAPACITOR, AND OPERABLE RESPECTIVELY IN ACCORDANCE WITH THE POSITION OF SAID KEY SWITCH; AND UNIDIRECTIONALLY CONDUCTIVE MEANS INTERCONNECTING THE OPERATING CIRCUIT AND SAID CONTROL CAPACITOR UPON OPERATION OF SAID KEY SWITCH; SAID CIRCUIT MEANS HAVING CHARACTERISTICS DETERMINING THE CONTINUED EFFECTIVENESS OF SAID UNIDIRECTIONALLY CONDUCTIVE MEANS FOLLOWING KEY SWITCH OPERATION.
Claim 2
Dependent Claim
118 words
IN AN ELECTRICAL MUSICAL INSTRUMENT: AN ELECTRICALLY OPERATED GENERATING DEVICE THAT PRODUCES A SIGNAL CORRESPONDING TO A MUSICAL TONE WITH AN INTENSITY RELATED DIRECTLY TO THE INTENSITY OF ELECTRICAL ENERGIZATION: AN OPERATING CAPACITOR; AN OPERATING CIRCUIT FOR SAID GENERATING DEVICE INCLUDING SAID OPERATING CAPACITOR; A SINGLE POLE KEY SWITCH COOPERABLE WITH A SOURCE OF DIRECT CURRENT; A CONTROL CAPACITOR; CIRCUIT MEANS PROVIDING CHARGING AND DISCHARGING CIRCUITS FOR SAID CONTROL CAPACITOR, AND OPERABLE RESPECTIVELY IN ACCORDANCE WITH THE POSITION OF SAID KEY SWITCH; AND UNIDIRECTIONALLY CONDUCTIVE MEANS INTERCONNECTING THE OPERATING CIRCUIT AND SAID CONTROL CAPACITOR UPON OPERATION OF SAID KEY SWITCH; SAID CIRCUIT MEANS HAVING CHARACTERISTICS DETERMINING THE CONTINUED EFFECTIVENESS OF SAID UNIDIRECTIONALLY CONDUCTIVE MEANS FOLLOWING KEY SWITCH OPERATION.
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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |