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United States Patent and Trademark Office
- Shading and cross-hatching are used in design patent drawings to create a clear understanding of the invention’s various features and components1. Here are some guidelines for shading in design patent drawings2345:
- Line thickness should be used to indicate the boundaries of the design, with thicker lines being used for the visible boundaries and thinner lines for hidden or obscured boundaries.
- Shading should be used to show surface contours and must be consistent throughout the drawings.
- Appropriate surface shading should be used to show the character or contour of the surfaces represented.
- Surface shading is necessary to distinguish between open space and solid areas.
- The right shading in patent illustrations eliminates the chances of confusion and rejection by patent examiners.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.Shading is used to create a smooth transition from light to dark areas, while cross-hatching is used to create a series of parallel lines to show the shape, form, and texture of an object. In patent drawings, shading and cross-hatching are used to create a clear understanding of the invention’s various features and components.thepatentdrawingscompany.com/the-use-of-shadin…Line thickness and shading are critical in design patent drawings. Line thickness should be used to indicate the boundaries of the design, with thicker lines being used for the visible boundaries and thinner lines for hidden or obscured boundaries. Shading should be used to show surface contours and must be consistent throughout the drawings.patentdrawingsservices.com/design-patent-drawin…US patent laws require that design drawings include appropriate surface shading that clearly shows the character and contour of all surfaces of any three-dimensional aspects of the design. Surface shading is also necessary to distinguish between open space and solid areas.www.patenttrademarkblog.com/requirements-for-d…Surface shading in the drawings may be important to determining whether the patent design covers a particular third party product (e.g. an alleged infringer). The patent rules provide regarding design patent drawings, “Appropriate and adequate surface shading should be used to show the character or contour of the surfaces represented.”www.waltmire.com/2016/09/07/design-patent-drawi…Shading is a technique that is used to visually define an object for better understanding of an ornamental design. Like we use shading for showing the depth of a part, circular shapes, 3D effects in 2D designs, contours, etc. The right shading in patent illustrations eliminates the chances of confusion and rejection by patent examiners.sagaciousresearch.com/blog/patent-drawings-whe… - People also ask
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