US4541801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color scale palette
Assignee: Kulzer GmbH
•
Filing: 1984-04-13
•
Granted: 1985-09-17
•
Expires: 2004-04-13
Abstract
Abstract A color scale palette has color sample rods tinted all along their lengths from a stem in a frame to the other end projecting from the frame. The frame has a window for exposing a portion of the color sample rods and, for example, a color key, and studs cooperative with a bore through the stem end of each color sample rod for snapping it into the frame. The bore is preferably a funnel-shaped for shadow-free as well as juxtaposed color comparisons.
Inventors
- 👤 Wilhelm Mackert
- 👤 Karlheinz Matthay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:53
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/10
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
129 words
A color scale palette, especially for selecting a dental material, comprising: color rods each being tinted a different color all along its length and having a bore through one, stem end for color comparision therethrough; and a frame for removably receiving the stem end of each color rod with the other ends of the rods projecting from the frame, the frame having guides, cover and back plates spacedly connected to each other by the guides between each pair of the color rods for, together, guiding the stem ends of the color rods into the frame with the other ends of the color rods projecting from the frame, and a stud which snaps into the bore through the stem end of each color rod when so guided into the frame.
Claim 2
Dependent Claim
129 words
A color scale palette, especially for selecting a dental material, comprising: color rods each being tinted a different color all along its length and having a bore through one, stem end for color comparision therethrough; and a frame for removably receiving the stem end of each color rod with the other ends of the rods projecting from the frame, the frame having guides, cover and back plates spacedly connected to each other by the guides between each pair of the color rods for, together, guiding the stem ends of the color rods into the frame with the other ends of the color rods projecting from the frame, and a stud which snaps into the bore through the stem end of each color rod when so guided into the frame.
Claim 3
Dependent Claim
31 words
The color scale palette of claim 1, and further comprising window means in the frame for exposing a portion of the stem end of each color rod when in the frame.
Claim 4
Dependent Claim
21 words
The color scale palette of claim 2, wherein the other end of each color rod is thicker than its stem end.
Claim 5
Dependent Claim
12 words
The color scale palette of claim 2, wherein the bore is funnel-shaped.
Claim 6
Dependent Claim
53 words
The color scale palette of claim 2, wherein the window means comprises a window centrally across the cover plate, the studs being on a side thereof opposite that from which the other ends of the color rods project from the frame, and the back plate corresponds in size and position with the window.
Claim 7
Dependent Claim
44 words
The color scale palette of claim 1, and further comprising an identifying characteristic on a portion of the stem of each color rod and window means in the frame for exposing the portion of the stem of each color rod when in the frame.
Claim 8
Dependent Claim
21 words
The color scale palette of claim 6, wherein the other end of each color rod is thicker than its stem end.
Claim 9
Dependent Claim
12 words
The color scale palette of claim 6, wherein the bore is funnel-shaped.
Claim 10
Dependent Claim
53 words
The color scale palette of claim 6, wherein the window means comprises a window centrally across the cover plate, the studs being on a side thereof opposite that from which the other ends of the color rods project from the frame, and the back plate corresponds in size and position with the window.
Claim 11
Dependent Claim
26 words
The color scale palette of claim 6, wherein at least portion of the stem of each color rod is the same color as the end thereof.
Claim 12
Dependent Claim
19 words
The color scale palette of claim 6, wherein the end of each color rod is thicker than its stem.
Claim 13
Dependent Claim
21 words
The color scale palette of claim 10, wherein the recess comprises a funnel-shaped bore through the stem of each color rod.
Claim 14
Dependent Claim
21 words
The color scale palette of claim 11, wherein the recess comprises a funnel-shaped bore through the stem of each color rod.
Claim 15
Dependent Claim
52 words
The color scale palette of claim 10, wherein the window means comprises a window centrally across the cover plate, the studs being on a side thereof opposite that from which the ends of the color rods project from the frame, and the back plate corresponds in size and position with the window.
Claim 16
Dependent Claim
51 words
The color scale palette of claim 13, wherein the window means comprises a window centrally across the cover plate, the studs being on a side thereof opposite that from which the ends of the color rods project from the frame, and the backplate corresponds in size and position with the window.
Claim 17
Dependent Claim
19 words
The color scale palette of claim 1, wherein the end of each color rod is thicker than its stem.
Claim 18
Dependent Claim
21 words
The color scale palette of claim 16, wherein the recess comprises a funnel-shaped bore through the stem of each color rod.
Claim 19
Dependent Claim
52 words
The color scale palette of claim 16, wherein the window means comprises a window centrally across the cover plate, the studs being on a side thereof opposite that from which the ends of the color rods project from the frame, and the back plate corresponds in size and position with the window.
Claim 20
Dependent Claim
21 words
The color scale palette of claim 1, wherein the recess comprises a funnel-shaped bore through the stem of each color rod.
Claim 21
Dependent Claim
52 words
The color scale palette of claim 19, wherein the window means comprises a window centrally across the cover plate, the studs being on a side thereof opposite that from which the ends of the color rods project from the frame, and the back plate corresponds in size and position with the window.
References Cited (Backward Citations)
US2765534A
Cited
US4115922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-16 | 1989-03-18 | 1989-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-16 | 1993-03-18 | 1993-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-16 | 1997-03-18 | 1997-09-17 | $7700.00 | Window Closed / Lapsed |