Vale played some attractive football in the first half, but struggled to create any clear openings against a strong Town defence led by veteran Robert Page.
And it was another old stager, 34-year-old Andy Booth, who gave the home rearguard plenty to think about.
Booth almost broke the deadlock on 30 minutes when his header from Andy Holdsworth’s cross was blocked on the line by Simon Richman.
Huddersfield started brightly in the second half and had the ball in the net in the 58th minute when Nathan Clarke headed Holdsworth’s corner towards goal, but Chris Brandon was adjudged to have strayed offside before he netted from point-blank range.
Booth and Holdsworth then both shot wildly off target.