US3129418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic keyboard
Assignee: Teledyne Inc
•
Filing: 1960-08-04
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Granted: 1964-04-14
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Expires: 1980-08-04
Abstract
No abstract record available.
Inventors
- 👤 Tour Roger Boy De La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:02
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/94; H03K17/965; H03K17/97; H03K17/972
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AN ELECTRONIC KEYBOARD COMPRISING, IN COMBINATION: A PLURALITY OF MANUALLY OPERABLE KEY MEANS, EACH KEY MEANS INCLUDING: A KEY MEMBER; A MAGNET MOVABLE BETWEEN FIRST AND SECOND POSITIONS IN RESPONSE TO MOVEMENT OF SAID KEY MEMBER, AN INDUCTANCE INCLUDING A MAGNETIZABLE CORE STATIONARILY POSITIONED ADJACENT TO SAID SECOND POSITION; BARRIER MEANS DISPOSED BETWEEN SAID MAGNET AND INDUCTANCE PREVENTING PHYSICAL CONTACT OF SAID MAGNET WITH SAID INDUCTANCE; AND AN ELECTRIC CIRCUIT INCLUDING MEANS FOR GENERATING AN ELECTRIC SIGNAL, AND INCLUDING SAID INDUCTANCE, SAID CIRCUIT HAVING AN OUTPUT, SAID INDUCTANCE
Claim 2
Dependent Claim
88 words
AN ELECTRONIC KEYBOARD COMPRISING, IN COMBINATION: A PLURALITY OF MANUALLY OPERABLE KEY MEANS, EACH KEY MEANS INCLUDING: A KEY MEMBER; A MAGNET MOVABLE BETWEEN FIRST AND SECOND POSITIONS IN RESPONSE TO MOVEMENT OF SAID KEY MEMBER, AN INDUCTANCE INCLUDING A MAGNETIZABLE CORE STATIONARILY POSITIONED ADJACENT TO SAID SECOND POSITION; BARRIER MEANS DISPOSED BETWEEN SAID MAGNET AND INDUCTANCE PREVENTING PHYSICAL CONTACT OF SAID MAGNET WITH SAID INDUCTANCE; AND AN ELECTRIC CIRCUIT INCLUDING MEANS FOR GENERATING AN ELECTRIC SIGNAL, AND INCLUDING SAID INDUCTANCE, SAID CIRCUIT HAVING AN OUTPUT, SAID INDUCTANCE
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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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |