The phrase "at some unspecified point" is correct and usable in written English.
It can be used when referring to a time that is not clearly defined or is vague in nature.
Example: "The project will be completed at some unspecified point in the future, depending on various factors."
Alternatives: "at an indeterminate time" or "at a vague moment".
The action has moved from modern semisuburban Texas to a rocky and desolate valley in northwest China at some unspecified point in the feudal past.
Essentially, the agreement is another step toward the goal of allowing Argentina to reorganize its economy, potentially allowing it to pay back its debts at some unspecified point.
The moral here is that you should always take lessons in saving yourself from the thing that will probably kill you at some unspecified point in the future.
His insistence on "regime change" was somewhat tempered: he talked instead of the "prospect" of a new and different kind of government, at some unspecified point after Iraq had decided to behave.
But its arrival will induce a certain amount of consternation among parents, especially of teenage boys, worried that that's the last they will see of their offspring until they emerge, all but zombified, at some unspecified point in the future.
Devotees of the absurd, meanwhile, may well be delighted by news that Danny Alexander is reportedly "positioning himself" for a leadership bid at some unspecified point in the future, but let's park that one.
Each provided a free service in order to attract a large audience that would then at some unspecified point in the future attract large amounts of advertising revenue.
The issue is fading, even on the Republican side, as they realize that the public isn't interested in their "repeal it, and then maybe at some future unspecified point we will make changes that we cannot tell you about right now" stance anymore.
Both men were filmed by undercover News of the World reporters apparently agreeing a deal to throw four frames at events at unspecified points in the future.
