Graphical Drawing Symbols - 37 CFR 1.84(n)

When the color is an important feature of the invention, the following line patterns are used to provide a specific color of the object.

Drawing Symbols

Drawing symbols are required when some colors are used in the patent drawings, however, need to mention the color in line art form. In such cases, a specific hatch pattern is used to depict the specific color.

Colored drawings are attached separately with the patent application.

Follow Desillus Solutions Inc. for more information about patent drawings.

https://mpep.uspto.gov/RDMS/MPEP/E9_R-11.2013#/E9_R-11.2013/d0e47639.html

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