visitor visa extension approval date question

[immisri]

my friends mom has 10 year visa and she visited him once in aug2003,

he applied for extension in jan 2004 before the i94 expiry date and got an approval in aug2004.
But his mom left in july 2004 itself.
My question is, on the extension of stay approval I797A approval notice it says the valid from are aug15th to sep15th 2004

Notice type: approval notice
class B2
valid from 8/15/2004 to 9/14/2004

why is it showing only one month rather than valid for another 6 months from her poe IO issued original i94 expiry date?

Is this how all extensions approvals get dated?

will there be any problems when she plans to visit again later this year?

can someone who knows or sponsors who got extension of stay approval pls respond quickly with their date ranges, thanks

[immihelp]

She got an extension for 1 month, and not 6 months.

[immisri]

here are the dates, pls reply, urgent!!

first entry in aug 11 2003 gets 6 months stay at port of entry
extension applied in jan 2004 - 6 month
his mom stay another 5 months, total 11, and left july 12 2004
till then no response
I797 approval received in aug 2004 on 12th month
valid from 8/13/04 to 9/12/04 which is actually the 13th month

looks like they approved her 6 month extension stay and gave her a grace period of 1 month to leave the us

am i right? folks pls respond, can someone else post their approval date range? thanks