When Should a Do It Yourself Inventor Seek Patent Assistance?
It is certainly true that once you file a nonprovisional patent application your ability to make additions to the application has largely ceased. Even if you are filing a provisional patent application, while you could always file another provisional patent application to correct mistakes, the first filing is only as good as what is disclosed. Taking the first filed patent application seriously and making sure it has all the necessary disclosure is absolutely critical. Therefore, having a professional review your patent application before you file is definitely wise. The question, however, is when do you seek the assistance? Frequently many inventors wait too long before they seek help, which means much of what they have done is unusable and various levels of difficult (or impossible) to work with.