Color scale palette
US4541801A · kind A · utility
9Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1984 |
| Grant date | Sep 17, 1985 |
| Priority date | — |
| Expiry date | Apr 13, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C19/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.