I'm not used to seeing the model number included in the serial number like that from Hoover!! Usually there is a definite space on the label or serial number on separate line. Generally the first 4 digits of Hoover serial number are date: Month, then year. Your machine is hard to tell because if the unit was C1404-001,-- as many Hoovers have 3 digits in model number post the hyphen, then your serial would read: 2110....
Though usually for the 3 digit post hyphen number it is: -040, -030, -009, -900 I can't fully recall a -001 but I'm not a Hoover expert. I have knowledge in them but not an expert!
Nice Elite based unit though. Elites clean well!