You generally don't find expiration dates on patents or in the Public Pair. This is unfortunate. Unless there is an extension, the patents cited will expire 20 years from their priority date. For both of these patents that should be March 10th, 2024. Similarly, any patent arising from the published application US 2016-0095523 will also expire no later than ...
To understand the File History of a patent or an application - (filed/granted in US) - follow the steps shown here (as of September 2015)
1 - Search for USPTO Public Pair
2 - Go to the page shown below
Enter the captcha and press Continue
3 - Now enter the publication number-select that radio button and press Search
4 - Now select the tab that you want ...