The Pennsylvania Supreme Court ruled that ballots can arrive as late as Nov. 6 and still count as long as no evidence (e.g., a postmark) exists that they were mailed after Election Day (Nov. 3).
A state judge in Michigan decreed that ballots can be counted as long as they are postmarked by the day before the election (Nov. 2) and received by Nov. 17.
A federal judge ordered Wisconsin to count absentee ballots that are postmarked by Nov. 3 as long as they arrive by Nov. 9.
And North Carolina reached a tentative court settlement with plaintiffs that, among other things, would allow ballots to count as long as they are postmarked by Nov. 3 and arrive by Nov. 12. (However, the settlement still needs to be approved by a judge before it officially goes into effect.)