Time Limit between Date of Deed of Easement and Filing with AP1?

Is there a time limit between the signing date of a Deed of Easement (in this case for rights to take and maintain electricity/telecomms) by the parties and sending the Certified Copies of the original signed deed papers in for formal registration using form AP1? For example, if the deed was signed by the parties 6 months ago, will it still be accepted if registered now?

Carl - there's no time limit and 6 months delay would not be an issue