221g is one of the most tricky situations that you can be in after US visa interview. The wait can be long and frustrating. Read What is 221g, Processing Times . Some of you might be curious to see how a denial letter would look like, if your 221g did not go through in favorable decision to you. Below is the sample for H1B visa refusal letter for an applicant by US consulate after 221g blue slip was given.
Sample US Visa Denial Letter from Consulate after 221(g) given for H1B