Jason Moon, 29, of Main Road, Galgate, carried out the attack after being asked to leave the New Inn pub, also on Main Road, on 2nd July.
Moon had been drinking in the venue with his girlfriend when she became abusive to other customers and the couple were asked to leave.
Loud banging noises in the car park then drew the landlord and a few customers outside, where Moon then set upon one of the customers, forcing him to the floor and hitting him over the head with a bottle before fleeing the scene.
Moon’s victim, who was 29 at the time of the attack, was left with lacerations to his head and neck and a severed artery which required hospital treatment.
Appearing at Preston Crown Court yesterday, having previously pleaded guilty to wounding with intent, Moon was sentenced to seven years imprisonment.
Speaking after the sentencing, Detective Sergeant Steve Craig said: “The injuries inflicted by Moon could have potentially been life threatening. What was started inside the pub escalated into a violent attack.
"I hope that this sentence serves as a warning to others that violence, especially that fuelled by alcohol, will not be tolerated and that we will seek to put those who commit such acts before the courts.”