Rattigan...
The OP is not misleading at all... The Watchtower did in fact teach that the heavenly calling had ceased in 1935, albeit they later started using words like "evidently" and "apparently" and it "seems" and "virtually" to give themselves an out (like they do with all of their strange doctrines)... here are just some examples...
"Apparently, by the years 1931-1935 all symbolic fish suitable for the kingdom of the heavens had been caught to complete the foreordained number of 144,000 joint heirs of Christ." -Watchtower November 15, 1967 page 694 paragraph 10
"Evidently, the gathering of these was virtually complete by 1935." -Watchtower January 1, 1988 page 11 paragraph 8
"It seems that by the year 1935, the general ingathering of the anointed was complete." -Watchtower January 15, 2000 page 16 paragraph 11
"Their identifying themselves with the great crowd of other sheep indicated that by 1935 the calling of the 144,000 anointed Christians was virtually complete." -Watchtower May 15, 2001 page 15