'request for an extension' is correct and usable in written English.
You can use it when you would like to ask for additional time to complete a task. For example, "I am writing to request for an extension on the deadline for my assignment."
On Monday, Judge Chin approved the request for an extension.
Euro-area finance chiefs rejected a Greek request for an extension of the country's bailout.
Several Republican candidates in the race filed a request for an extension to those deadlines.
Greece's request for an extension has been turned down, says the news agency Agence France-Presse.
The federal judge assigned to the case, Mortimer Beyers, waves away his request for an extension for more due diligence.
In a letter to Congressional leaders, Mr. Bush said his request for an extension would aid families that had been divided by immigration barriers or fear of deportation.
Analysts said Moscovici showed no sign of being willing to back Greek requests for an extension of its latest bailout package, saying that it was vital that the conservative-led government in Athens maintained "determination" in pursuing reform goals.
The route would interchange with the DR at Walham Green before coming to the surface and running parallel with the DR as far as Parsons Green, beyond which the line was to connect to the DR. The requests for an extension of time and for the powers to build the DR deep-level line from South Kensington to Earl's Court were re-presented.
Considering that many countries had requested for an extension on the deadline to fulfill the IHR 2005 core capacity requirements, Taiwan's experiences can be a source of learning for countries striving to fully implement these requirements.
But once the Dodgers rejected his request for an expensive extension, Sheffield said he wanted to be traded.
Rebuffed in his request for a contract extension, Sheffield has asked to be traded.
