Allegiant Technology used to own SuperCard

SuperCard, a software program that grew from HyperCard, sorta, transferred its ownership. The owner was Allegiant and it was sold off for its stock market / trading opportunity. The software was of no value. 

But, it was not able to be turned into a fully open source offing. 

Some years later, MetaCard and then LiveCode would be in the marketplace. 

LifeCode is with an open-source and community version as of 2020 and hopefully beyond.

Since PDF's can not be hosted at blogger, see the link to the PDF at https://code.swimisca.org/allegiant-technologies-inc-a-frustration-and-epic-loss-with-supercard/