A campaign group has gone to the Criminal Cases Review Commission (CCRC) to help clear the names of TV actor Ricky Tomlinson and 23 others of picketing offences.
The Royle Family star was among building workers put on trial in Shrewsbury in 1973 after being charged under the 1875 Conspiracy Act.
He served 16 months of a two-year jail sentence after being convicted.
Mr Tomlinson is part of a group leading the Shrewsbury Pickets Campaign.
He said: "It's affecting our lives even now. I had trouble getting to America... It took me nine months to get a passport.
http://www.bbc.co.uk/news/uk-england-17602810