US3150228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic musical instrument
Assignee: Gibbs Manufacturing and Research Corp
•
Filing: 1960-06-09
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Granted: 1964-09-22
•
Expires: 1980-06-09
Abstract
No abstract record available.
Inventors
- 👤 Thomas B Gibbs
- 👤 William H Krug
- 👤 James L Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:51
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/053; G10H1/057; Y; Y10; Y10S; Y10S84/00; Y10S84/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
IN AN ELECTRONIC MUSICAL INSTRUMENT: A SOURCE OF TONE REPRESENTING ELECTRICAL SIGNALS HAVING TWO OUTPUTS WITH SIGNALS 180* DISPLACED IN PHASE; A FIRST CHANNEL CONNECTING ONE OF THE OUTPUTS OF SAID SOURCE WITH A REPRODUCING DEVICE; A SECOND CHANNEL CONNECTING THE OTHER OF
Claim 2
Dependent Claim
43 words
IN AN ELECTRONIC MUSICAL INSTRUMENT: A SOURCE OF TONE REPRESENTING ELECTRICAL SIGNALS HAVING TWO OUTPUTS WITH SIGNALS 180* DISPLACED IN PHASE; A FIRST CHANNEL CONNECTING ONE OF THE OUTPUTS OF SAID SOURCE WITH A REPRODUCING DEVICE; A SECOND CHANNEL CONNECTING THE OTHER OF
References Cited (Backward Citations)
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Cited
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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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |