“Case Accepted By The USCIS Lockbox”on your I-687 · 1986 legalization temporary residence


Your I-687 passed the intake check: the fee was processed and the application was accepted. Next it receives a receipt number and is sent for review of your class membership and residence evidence. Watch your mail for the I-797C.
In general, on any form:
The USCIS Lockbox, the facility that receives mailed filings and payments, accepted your package. Your fee was processed and the case is being entered into the system. A receipt notice usually follows. This is the very first intake step.
Your I-687 passed the intake check: the fee was processed and the application was accepted. Next it receives a receipt number and is sent for review of your class membership and residence evidence. Watch your mail for the I-797C.
It is the facility that opens mailed filings, takes payments and sends cases into the system.
No. It only means your package passed the first intake check.
Usually within a few weeks after the Lockbox accepts the case.
AI-assisted explanation based on the official USCIS status, reviewed by CaseAlerta. Not legal advice. Times are typical ranges, never an exact date.