B1 extension 2nd time-is it possible

[Maverick]

My parents have 10 year multiple entry visa(B1). They came to US last year with a 6 month stamping. They applied for a extension and the application was approved. They need to extend their visa for one more month(AUG'02 to Sept'02). Is there any restrications on number of time one can apply for a B1 extension. If anyone has any personal experiences or can guide me please update this thread. Thank you in advance.
Maverick

 

[Erquan]

b1 extension

I think it's worth trying and there have been successful cases where parents got entensions to stay here for 2 years. Theoretically you may keep on extending it once every half a year, but I have not heard anyone make more than three attempts.

I am applying for a second extension for my parents. I got a rfe but ins has not approved yet. If it works out my parents will have been here for a year and half by Nov..