got another Examiner's Answer where the Examiner says new ground of rejection (actually there is none). I understand new ground of rejection must be approved by technology center director but it has not been. The Examiner again gives us option of either reopening the prosecution or to maintain the appeal. Can he do that??
The rules are clear on what happens when the Answer states there is a new ground: you must maintain the appeal by filing a reply brief OR you must reopen prosecution (withdraw the appeal) by filing a response.
I don't think the fact that the Examiner didn't comply with the TC signature requirement relieves you of this duty. If you want to fight it, you can file a Petition challenging the propriety of the New Ground -- but you must do this *in addition* to reply brief / response.
Is the examiner allowing you to reopen prosecution without filing an RCE? If so, that suggests to me that either: 1) you are dealing with a very junior examiner who doesn't know what he/she is doing; or 2) the examiner or his/her SPE s not confident in their grounds of rejection.
The way I read the rule for New Grounds in an Answer (37 CFR >41.39(a)(2)), it's definitely a Response that doesn't require an RCE.
Which is only fair, right? He issued a new ground because the arguments in your brief convinced him.
I've appealed many cases and gotten pros reopened a fair number of times -- but never with a New Ground of Rejection in an Answer. What I see is always the Examiner re-opening pros on his own. I actually prefer the New Grounds in an Answer, because it gives me the right to maintain the appeal if his new grounds are also weak.
In some of my cases where the Examiner re-opened pros after my Appeal Brief, I've "effectively" maintained the appeal by simply refiling a Notice of Appeal plus a brand new Brief with new arguments addressing the new rejections. This strategy saves me paying another round of fees for Notice+Brief.