Dating site patents
A detailed Patent Technology Monitoring Team report, titled Issue Dates and Patent Numbers Since 1836, which contains first patent numbers and the day of issue for patents issued since 1963, also may be of interest. Patent and Trademark Office Electronic Information Products Division - PTMT P.
The USPTO houses full text for patents issued from 1976 to the present and PDF images for all patents from 1790 to the present.
You can read Claim 1 for yourself, but my quick review lets me classify the patent as quite low quality; very difficult to infringe; and likely invalid under 101 (abstract idea).