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This question already has an answer here:

Here's just one example - a question about whether some patent was invalidated during reexamination. This answer says

This can be looked up and followed in the USPTO Public PAIR

Now I go to and "search by patent number" and there's lots of data on multiple tabs.

Where's the data on reexamination in there?

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marked as duplicate by Micah Siegel Sep 3 '13 at 17:57

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

look at continuity data tab. The SE link(answer) you gave also talks about the details of reexamination. – Fr0zenFyr Sep 3 '13 at 11:11
up vote 1 down vote accepted

Did you take a look at How does one know if a patent was reexamined?

All your answers with graphical illustrations are there.

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