Identify and Describe the Major Parts of a Patent Application

Identify and describe the major parts of a patent application.
A.Introduction - this section should contain the background and advantages of the invention and the nature of problems that it overcomes.It should clearly state how the invention differs from existing offerings.
B.Description of Invention - should contain a brief description of the drawings that accompany it.These drawings must comply with PTO requirements.Following this would be a detailed description of the invention,which may include engineering specifications,materials,components,and so on,that are vital to the actual making of the invention.
C.Claims - the most difficult section of the application to prepare since claims are the criteria by which any infringements will be determined.Essential parts of the invention should be described in broad terms so as to prevent others from getting around the patent.At the same time,the claims must not be so general that they hide the invention's uniqueness and advantages.