Sorry, I thought the second time (!) I've submitted this that the HN filter didn't mess up the link. Here it is (https://www.federalregister.gov/documents/2022/04/28/2022-09...), hopefully!

In case that the overagressive HN filer ate it again, it's https www-federalregister-gov documents/2022/04/28/2022-09027/filing-patent-applications-in-docx-format

Also dang, recently HN's filters are too aggressive - from sentence-casing USPTO (to Uspto which isn't even a pronounceable acronym) to removing Twitter's search queries.

That explains why I get a 503 every time I pass the captcha.