Patent US3146291A successfully refreshed from Google Patents.
US3146291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pitch broadening apparatus for musical instruments having electronic tone generators
Assignee: Marmon Co
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Filing: 1959-12-28
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Granted: 1964-08-25
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Expires: 1979-12-28
Abstract
No abstract record available.
Inventors
- 👤 Donald J Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:45
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/043; Y; Y10; Y10S; Y10S84/00; Y10S84/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
54 words
IN A MUSICAL INSTRUMENT HAVING ELECTRICALLY OPERATED MEANS FOR PRODUCING IMPULSES CORRESPONDING TO SOUND AND COOPERABLE WITH A SPEAKER SYSTEM: CONTROLLABLE MEANS DESIGNED TO IMPART PHASE DEVIATIONS TO THE INSTRUMENT OUTPUT; AND MEANS PRODUCING A SIGNAL DESIGNED TO OPERATE SAID CONTROLLABLE MEANS IN SYNCHRONISM WITH THE OPERATION OF SOME OF SAID ELECTRICALLY OPERATED MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |