return window
also called return period
How long a product may be returned for — a numeral with a time unit ('30 days', '90 days', a 1-year / 365-day window), riding the return-policy statement as its qualifier. Cardinality one, and OPTIONAL: absent when the policy is not time-bound (an unlimited-window policy states its unlimited category instead of a numeral) or accepts no returns. The structural window only — the realised expiry date of a particular purchase is computed downstream from the sale moment, never stated here (A15: a duration in TimeUnits; no comparison strips a unit).
Return window is a measured figure, given in seconds or minutes.
It is a qualifier of return policy — it has meaning only inside a return policy statement, one per statement, never on its own. It belongs with return policy to warranty & returns — one facet of a product.
It is answered inside every return policy statement, not as a standalone question on a kind.
Answered inside every return policy statement — not a standalone slot on any kind.