US3333041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keying systems for electrical musical instruments for producing steadystate or percussive type tones either separately or concurrently
Assignee: DH Baldwin Co
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Filing: 1965-07-09
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Granted: 1967-07-25
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Expires: 1985-07-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter Munch
- 👤 Robert C Scherer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:21
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/053; G10H1/057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN AN ELECTRONIC ORGAN, A PLURALITY OF THREE CONTINUOUSLY RUNNING TONE SOURCES FOR PRODUCING ORGAN TONE, PATHS EXTENDING FROM EACH OF SAID TONE SOURCES, EACH OF SAID PATHS INCLUDING A SEPARATE SOLID STATE DIODE GATE CONNECTED IN CASCADE WITH ONE OF SAID TONE SOURCES, AN ELECTRO-ACOUSTIC LOAD CIRCUIT CONNECTED IN CASCADE WITH ALL SAID GATES, MEANS FOR NORMALLY MAINTAINING ALL SAID SOLID STATE DIODE GATES NON-CONDUCTIVE, A SOURCE OF DIRECT BIAS VOLTAGE, KEY SWITCH MEANS INCLUDING ONLY TWO SWITCH CONTACTS INTERPOSED BETWEEN SAID SOURCE OF DIRECT BIAS VOLTAGE AND ALL SAID SOLID STATE DIODE GATES,
Claim 2
Dependent Claim
95 words
IN AN ELECTRONIC ORGAN, A PLURALITY OF THREE CONTINUOUSLY RUNNING TONE SOURCES FOR PRODUCING ORGAN TONE, PATHS EXTENDING FROM EACH OF SAID TONE SOURCES, EACH OF SAID PATHS INCLUDING A SEPARATE SOLID STATE DIODE GATE CONNECTED IN CASCADE WITH ONE OF SAID TONE SOURCES, AN ELECTRO-ACOUSTIC LOAD CIRCUIT CONNECTED IN CASCADE WITH ALL SAID GATES, MEANS FOR NORMALLY MAINTAINING ALL SAID SOLID STATE DIODE GATES NON-CONDUCTIVE, A SOURCE OF DIRECT BIAS VOLTAGE, KEY SWITCH MEANS INCLUDING ONLY TWO SWITCH CONTACTS INTERPOSED BETWEEN SAID SOURCE OF DIRECT BIAS VOLTAGE AND ALL SAID SOLID STATE DIODE GATES,
References Cited (Backward Citations)
US2483823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |