core + attic (Attic Area): these terms have been either depricated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

priceValidUntil

Canonical URL: http://schema.org/priceValidUntil

Thing > Property > priceValidUntil

The date after which the price is no longer available.

Usage: Between 1000 and 10,000 domains
Values expected to be one of these types
Date
Used on these types
Offer

Schema Version 3.2