How are patented and abandoned patent application files stored and accessed?

Patented and abandoned patent application files are stored and accessed differently based on their age and format: Recently patented and abandoned paper files are stored at the Files Repository. Older files are housed in off-site warehouses. Image File Wrapper (IFW) applications are stored electronically. According to MPEP 711.04(b): “Image File Wrapper (IFW) applications are stored…

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