Questions tagged [maintenance-fee]

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Approximate Time for USPTO actions

My query is i. Approximate time taken by USPTO to issue patent after payment of issue fee. ii. For payment of first maintenance fee, 3.5 years period is counted from date of grant or from priority ...
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Is it safe to sell a patented product that is expired due to fee and the anticipated expiration of the patent is in 2 years from now

I came across a product that I want to sell but when I found its patent through Google Patents, it says that the patent was canceled in 2015 because of no annual fee payment. Now my concern is; can ...