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I am under the impression that online filing of patent applications is paper-free, i.e., I am not required to send any physical document to the USPTO, but sending all documents as PDF files is OK.

However, the USPTO is very precise about the oath: it has to be signed in presence of a notary, and the notary has to rubber-stamp it (at least in some states). Then, when filing online a patent application, is it enough to send a scanned copy of the signed and rubber-stamped oath as a PDF file? Maybe I also need to send the oath by snail mail to the USPTO? I have found no conclusive evidence.

There is also a substitute called a "declaration", but I have not found an officially sanctioned form for that in the USPTO website. The regulations sometimes seem to discourage it, sometimes the other way around.

share|improve this question
Yes - A PDF declaration is fine. An oath is rarely used. The "discouraging" link just sets out the rules for a declaration's content. One version of the form is here This is just the beginning of rules and forms. – George White Sep 16 '13 at 17:10
Thank you very much, now I understand! – josedavid Sep 17 '13 at 6:55

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