Found this on a more recent 3m rebate form:
To check your rebate status, call 800-766-9334.
fwiw I called in today and was told my rebate was approved but it was still in processing. I sent my rebate in on around 12/10/2012 and she told me that entered it in their system on 2/6/2013. This is probably going to be one of the longest rebates I'll receive in awhile. Doubt I'll do another one from 3M in the future now that I know how long they take to come. At least it's approved though.
I got the deal that ended in December. Mailed 1/11/13. Called yesterday. They have my rebate and are still processing it. They didn't have a date of when the check will be issued. 12 weeks and counting. BS.
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