The USPTO has a 'menu' of services that one can purchase. I suspect that a patent search and exam is required when a utility patent:
- Why and when is each mandatory service performed? What are said mandatory services for a utility patent application?
- When are said service fees due? At filing of the NPA?
- If I do not understand the description of the line-item service (Reissue?), where is a good online resource to find clarification?