2016-12-13
Patents are a substantial way to protect your invention. When you patent your invention, you get exclusive rights to keep others from replicating, using or selling it. But applying for a patent is not as easy as it seems. As the saying goes, pictures convey more than words, patent applications are usually supported by drawings that describe a major of the part of your invention. Patent drawings are a critical part of your application hence, you need to get them done right to get a patent. If your invention can be illustrated by a sketch then drawings must be a part of your application.
You need to understand the basics of patent drawing to craft a successful patent application. Following are some tips on patent drawings.
1.Black & White
You are not allowed to use colours; the drawing must be in black and white, only then will it be accepted by the patent office. The lines in the drawing should be dense and well defined for easy examination. The paper on which the invention is sketched must have no folds, creases, erasures or underlining. The required paper size is 21.6 cm wide by 27.9 cm long. You need to have margins of specific dimensions on all sides of the page; 2.5 cm top and left, 1.5 cm on the right, and 1.0 cm at the bottom. Be cautious to not scribble anything in the margin.
2.Hatching
Hatching can be used in your drawing to highlight cross-sections, shapes, contours, shadows, and textures. Hatching is a technique used to create shading effects by drawing closely spaced parallel lines. Using this technique in your diagram can give the examiner an in-depth knowledge about your invention.
3.Number Call Outs
Numbers are preferred as reference characters over letters in a patent drawing. You must number each figure in your sketch and mention details in the description. The numbers must be made at least 0.32 cm high for easy readability. If you have several views of your invention depicted in different figures, use the same number for repeated parts of your drawing. Make sure there are no numbered parts that are not described. A properly numbered sketch with complete description will avoid chances of rejection.
4.View
Several figures can be placed on one page. If your invention has several parts which when attached becomes a single product then, place the drawings in a way that depicts individual figures put together as a whole. Sometimes a product like a table or a machine may also have different views such as back or front. You must depict each view in individual figures on the page.
Patent drawings must accurately illustrate the product features and its descriptions. Getting the basics of patent drawing right can help you draw an accurate image of your invention. It is essential that your drawing depicts your invention as it would look during normal use. You may take services of a professional artist or draftsperson. A legal patent attorney can guide you smoothly through the process of drafting a patent application.
