US3193609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Volume control for electronic organs
Assignee: DH Baldwin Co
•
Filing: 1961-08-29
•
Granted: 1965-07-06
•
Expires: 1981-08-29
Abstract
No abstract record available.
Inventors
- 👤 Meyer Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:10
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN AN ELECTRONIC ORGAN, A PLURALITY OF TONE GENERATORS, MEANS COMPRISING KEY SWITCHES FOR SELECTIVELY TONES DERIVING FROM SAID TONE GENERATORS, FORMANT FILTERS CONNECTED TO SAID KEY SWITCHES FOR FORMING SELECTED ONES OF SAID TONES, AN EXPRESSION PEDAL ACTUATED GAIN CONTROL DEVICE IN CASCADE WITH SAID FORMANT FILTERS, AN AMPLIFIER IN CASCADE WITH SAID GAIN CONTROL DEVICE, AND AN ACOUSTIC RADIATOR IN CASCADE WITH SAID AMPLIFIER, A VOLUME CONTROL DEVICE FOR CONTROLLING THE AMPLITUDE VERSUS FREQUENCY CHARACTERISTIC OF SAID AMPLIFIER, SAID VOLUME CONTROL DEVICE HAVING A CONTROLLABLE AMPLITUDE VERSUS FREQUENCY CHARACTERISTIC HAVING A VARIABLE SLOPE MAGNITUDE EXTENDING BETWEEN ZERO AND AT LEAST FIVE DECIBELS PER DECADE OVER SAID AUDIO BAND.
Claim 2
Dependent Claim
110 words
IN AN ELECTRONIC ORGAN, A PLURALITY OF TONE GENERATORS, MEANS COMPRISING KEY SWITCHES FOR SELECTIVELY TONES DERIVING FROM SAID TONE GENERATORS, FORMANT FILTERS CONNECTED TO SAID KEY SWITCHES FOR FORMING SELECTED ONES OF SAID TONES, AN EXPRESSION PEDAL ACTUATED GAIN CONTROL DEVICE IN CASCADE WITH SAID FORMANT FILTERS, AN AMPLIFIER IN CASCADE WITH SAID GAIN CONTROL DEVICE, AND AN ACOUSTIC RADIATOR IN CASCADE WITH SAID AMPLIFIER, A VOLUME CONTROL DEVICE FOR CONTROLLING THE AMPLITUDE VERSUS FREQUENCY CHARACTERISTIC OF SAID AMPLIFIER, SAID VOLUME CONTROL DEVICE HAVING A CONTROLLABLE AMPLITUDE VERSUS FREQUENCY CHARACTERISTIC HAVING A VARIABLE SLOPE MAGNITUDE EXTENDING BETWEEN ZERO AND AT LEAST FIVE DECIBELS PER DECADE OVER SAID AUDIO BAND.
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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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |