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US3733956A Expired / Lapsed US ⏱️ 0.0 years remaining

Scale fingering sliderule

Assignee: Individual
•
Filing: 1971-08-13
•
Granted: 1973-05-22
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Expires: 1991-08-13
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Abstract

Abstract A scale fingering sliderule for showing the proper sequential fingering of the keys in various scales on a keyboard, the slide holder or body of the item being essentially an elongated panel, the lower edge of which fits behind the keys on the keyboard and is thereby supported in vertical position. The holder has chromatic scale indicia adjacent the lower edge portion to identify all the keys in the adjacent part of the keyboard, while a slider, as one of a set of sliders, on said panel, identifies the tones of at least one scale with the scale intervals and the proper fingering in ascending or descending scale progression. A plurality of sliders, for different scale progressions, are supported in channels provided on both sides of the holder, only one at a time being exposed on the front side of the holder in properly adjusted position relative to the aforementioned chromatic scale indicia on the holder to indicate the keys to be struck and the fingering sequence numerically.

Inventors

  • 👤 V Leonard

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 11:19
CPC Classifications
G; G09; G09B; G09B15/00; G09B15/001; G09B15/004; G09B15/005; G09B15/006

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 103 words
An appliance for use with a keyboard, comprising: a holder having two returned lower edge portions defining front and back channels on opposite sides of the holder, said holder being reversible so that either channel can be the front channel in use; a set of cards stacked in said channels with a selected card visibly exposed in the front channel; each of said cards having scale indication means thereon directly pointing out the scale intervals and positions of the keyboard keys for a particular scale and also having fingering indicator means showing a proper fingering of the keyboard keys for said particular scale.
Claim 2
Dependent Claim 103 words
An appliance for use with a keyboard, comprising: a holder having two returned lower edge portions defining front and back channels on opposite sides of the holder, said holder being reversible so that either channel can be the front channel in use; a set of cards stacked in said channels with a selected card visibly exposed in the front channel; each of said cards having scale indication means thereon directly pointing out the scale intervals and positions of the keyboard keys for a particular scale and also having fingering indicator means showing a proper fingering of the keyboard keys for said particular scale.
Claim 3
Dependent Claim 61 words
An appliance according to claim 1 wherein said returned lower edge portions have chromatic scale indicating means to denominate all the adjacent black keys in the keyboard as sharps on one side of the holder and as flats on the other side of the holder so that the cards can be accordingly grouped in said channels and exposed selectively for use.

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) 1976-05-21 1976-11-20 1977-05-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-05-21 1980-11-20 1981-05-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-05-21 1984-11-20 1985-05-22 $7700.00 Window Closed / Lapsed

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