Assume you filed a Request for Reconsideration and the refusal has not yet been withdrawn, despite the fact that the 6-month deadline from the Final Office Action is rapidly approaching. You may file your Notice of Appeal on or near the deadline. After that, you will have 60 days to file your appeal brief.
If you have not yet filed a response to a final refusal, you may file a Request for Reconsideration and a Notice of Appeal at the same time, and the appeal process will be suspended while you await a decision on your reconsideration request.
You can ask for a suspension of your appeal pending the outcome of the reconsideration decision, as well as a remand of the application to the trademark examining attorney. This will push back the deadline for filing an appeal brief and may save you money if the reconsideration decision is favorable.