Patent US6006110A successfully refreshed from Google Patents.
Patent US3093911A successfully refreshed from Google Patents.
US3093911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Musical typewriter
Assignee: Individual
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Filing: 1961-12-22
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Granted: 1963-06-18
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Expires: 1981-12-22
Abstract
No abstract record available.
Inventors
- 👤 Harry R Hagelstein
- 👤 Emma A Hagelstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:26
CPC Classifications
G; G09; G09B; G09B13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
APPARATUS COMPRISING A MUSICAL TYPEWRITER HAVING A KEYBOARD AND PAPER ACCOMMODATING MEANS, SAID KEYBOARD HAVING A PLURALITY OF KEYS ARRANGED FOR TEN FINGER TYPING, SAID KEYS BEING FORMED INTO EIGHT DISTINCT GROUPS CORRESPONDING TO THE FOUR TYPING FINGERS ON EACH HAND OF THE OPERATOR OF THE APPARATUS, EIGHT TUNED SOUND GENERATING ELEMENTS ARRANGED IN A SEQUENCE ACCORDING TO A DIATONIC MUSICAL SCALE, A HAMMER FOR EACH SOUND GENERATING ELEMENT, EACH OF SAID GROUPS OF KEYS BEING OPERATIVELY ASSOCIATED WITH A SEPARATE HAMMER WHEREBY A SINGLE MUSICAL NOTE IS GENERATED BY THE STRIKING OF A KEY WITHIN ITS ASSOCIATED FINGER GROUP BY THE CORRECT FINGER OF THE USER.
Claim 2
Dependent Claim
107 words
APPARATUS COMPRISING A MUSICAL TYPEWRITER HAVING A KEYBOARD AND PAPER ACCOMMODATING MEANS, SAID KEYBOARD HAVING A PLURALITY OF KEYS ARRANGED FOR TEN FINGER TYPING, SAID KEYS BEING FORMED INTO EIGHT DISTINCT GROUPS CORRESPONDING TO THE FOUR TYPING FINGERS ON EACH HAND OF THE OPERATOR OF THE APPARATUS, EIGHT TUNED SOUND GENERATING ELEMENTS ARRANGED IN A SEQUENCE ACCORDING TO A DIATONIC MUSICAL SCALE, A HAMMER FOR EACH SOUND GENERATING ELEMENT, EACH OF SAID GROUPS OF KEYS BEING OPERATIVELY ASSOCIATED WITH A SEPARATE HAMMER WHEREBY A SINGLE MUSICAL NOTE IS GENERATED BY THE STRIKING OF A KEY WITHIN ITS ASSOCIATED FINGER GROUP BY THE CORRECT FINGER OF THE USER.
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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |