Normally - true!
True - provisionals are only good for one year and are NORMALLY followed in one year from their initial filing by a regular filing while maintaining the filing date of the provisional for protection purposes - that is what a provisional is all about - getting an as early a filing date as possible. Were the provisionals followed up? I have no idea.
A US patent only protects the invention in the USA. For wider protection other patents would need to be obtained in other contries usually through the WIPO-PCT system.
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