There is no set rate or price for patent drawings because prices are set by the market. Prices vary with the complexity and timing of drawings and reference materials supplied. The highest price is no guarantee of the best quality. Those in the market for patent drawings are wise to shop for the best quality at a competitive price.
Last time we discussed why drawings might get rejected. The following are real rejection/objection examples compiled from multiple notices. Each includes our suggested solution.
You may have had the misfortune to receive a drawing rejection or objection from the United States Patent and Trademark Office (USPTO), or a Patent Cooperation Treaty (PCT) rejection or other patent office rejection notice. Hopefully this will come with an invitation to correct defects in the application.
Regarding photographs, the United States Patent & Trademark Office states the following
What happens when you look at the holidays through the lens of a patent draftsperson?
Shading of objects helps us to understand an invention by visually defining shapes.