How should text files be formatted for a computer program listing appendix?

This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice.

When preparing text files for a computer program listing appendix, the following formatting guidelines should be followed:

• ASCII text format must be used.
• No more than 60 characters per line.
• A maximum of 72 lines per page.
• The right margin should not exceed 7.5 inches.
• Page numbering must not be included.
• Margins should be at least 1 inch on all sides.

According to MPEP 608.05(a): “Text files should be in ASCII format, with no more than sixty characters per line and no more than seventy-two lines per page.”