Patent US3250845A successfully refreshed from Google Patents.
US3250845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tremulant effect for electronic musical instruments
Assignee: Individual
•
Filing: 1963-07-01
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Granted: 1966-05-10
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Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Richard H Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:44
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/043; G10H1/045; Y; Y10; Y10S; Y10S84/00; Y10S84/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
IN AN ELECTRICAL MUSICAL INSTRUMENT, A SOURCE OF ELECTRICAL SIGNALS; A LOUDSPEAKER OPERATIVELY ASSOCIATED WITH SAID SOURCE; A FIRST MODULATING MEANS COMPRISING A MECHANICAL TREMULANT DEVICE ASSOCIATED WITH SAID LOUDSPEAKER FOR MODULATING THE SIGNALS EMANATING THERERFROM; A SECOND MODULATING MEANS FOR ELECTRICALLY MODULATING SAID ELECTRICAL SIGNALS, AND MEANS FOR AT LEAST SUBSTANTIALLY SYNCHRONIZING THE FIRST AND SECOND MODULATING MEANS.
Claim 2
Dependent Claim
59 words
IN AN ELECTRICAL MUSICAL INSTRUMENT, A SOURCE OF ELECTRICAL SIGNALS; A LOUDSPEAKER OPERATIVELY ASSOCIATED WITH SAID SOURCE; A FIRST MODULATING MEANS COMPRISING A MECHANICAL TREMULANT DEVICE ASSOCIATED WITH SAID LOUDSPEAKER FOR MODULATING THE SIGNALS EMANATING THERERFROM; A SECOND MODULATING MEANS FOR ELECTRICALLY MODULATING SAID ELECTRICAL SIGNALS, AND MEANS FOR AT LEAST SUBSTANTIALLY SYNCHRONIZING THE FIRST AND SECOND MODULATING MEANS.
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |