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.

billingPeriod

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

Thing > Property > billingPeriod

The time interval used to compute the invoice.

Usage: Fewer than 10 domains
Values expected to be one of these types
Duration
Used on these types
Invoice

Schema Version 3.2