This is why I don't trust data from the net, when everyone knows something, but nobody can give a reference ;P
There were no Utility patents issued Oct 15, 1843 whatsoever.
There was a patent issued to Richard Clyburn on Sep 5th , 1843 however.
(Note: 1842 on the table is a typo, the succeeding tables are dated 1843, in sequence, and it is from the 1844 register, which is likely where the 1842 claims come from)
From: The Mechanic's Magazine, Museum, Register, Journal and Gazette, Volume 39
(google books)
PS: The actual patent number is 3