Norms with an open window

A missing deadline is an open window: the goal interval ends in infinity rather than a date. The first query lists exactly those norms; the second lists the closed ones for contrast, with their dates.

LawQL

from w in windows
where w.deadline == null
select w.norm as norm, w.kind as goal, anchor(w.norm) as anchors

LawQL

from w in windows
where w.deadline != null
select w.norm as norm, w.deadline as deadline

An open window is a legitimate state, not a defect: answers to questions carry no deadline. A question about what is owed by which date for a concrete case still goes to the case tools.