I designed a suitcase. Want to apply for a patent for appearance clothing. So how do I know if anyone has applied for a patent for a case that shares my thoughts?

Clothing application for appearance patent has never been taken seriously, so clothes of the same style sell thousands in big shopping malls and may sell dozens in stalls. Admittedly, there must be differences in quality, but the reason for the price difference is that the style of brand clothes needs special designers to spend time and energy to design, and the cost is definitely higher. However, the clothing styles that have been painstakingly designed are not protected by appearance patents, so they are copied casually and lose their own interests. Clothing 1 matters needing attention in applying for appearance patent, the size of the picture or photograph should be between 3cm× 8cm and 15cm× 22cm; 2. Pictures must be drawn by computer or regular drawing tools; 3. Three-dimensional product pictures should include front view, back view, left view, right view, top view, bottom view and three-dimensional view; Plane product pictures include front view and back view (symmetrical or identical can be omitted); 4, the proportion of each view must be consistent; 5. Pictures or photographs shall not contain trademarks, logos, portraits of celebrities and other graphics or words that do not constitute designs, and shall not contain indicator lines, dotted lines, middle lines, size marks, etc. 6. Time required: It generally takes about 3 to 6 months from application to authorization, and the design patent certificate will be issued within three months after the authorization procedure is completed.