Medium thinker:
Not quite. Intent to abandon means that you intend for other people to be allowed to use it; not that you intend to not use it yourself anymore. There is no evidence that he intended for other people to be allowed to copy it.
“n order to effect an abandonment, the proprietor must have an intention to surrrender or abandon his right and allow the public to copy.” 84 A.L.R.2d 462