“In 1.4(f): “When a document that is required by statute to be certified must be filed, a copy, including a photocopy or facsimile transmission, of the certification is not acceptable.” Clearly no copies, requires originals, and consequently, original hand signatures.”

Consequently, orginal sinagtures, which can be d(1) hand written or d(2) S-signature, as long as they are orginal.

S-signature can be original, for instance, personal name stamps used in Asian countries.

Be noted, a copy of a S-signature is NEVER acceptable. d(1) hand written permits a copy as stated in d(1)(ii). But no similar language in d(2) S-signature.

“§ 41.67 Appellant’s brief
(a)(2) The brief must be signed by the appellant, or the appellant’s duly authorized attorney or agent and must be accompanied by the requisite fee set forth in § 41.20(b)(2).”

****This is true, but it is not talking about Appeal Brief in regular prosecution but inter parte reexam

If the appeal brief is not signed, the relevant form paragraph states:

Ҧ 12.112 Brief Defective РUnsigned
The appeal brief filed on [1] is defective because it is unsigned. 37 CFR 1.33. A ratification properly signed is required. To avoid dismissal of the appeal, appellant must ratify the appeal brief within ONE MONTH or THIRTY DAYS from the mailing of this communication, whichever is longer. Extensions of time may be granted under 37 CFR 1.136.”

****This paragraph in 1200 is gone. I could not find it.

The question asked which of the following does not require a signature:
(1) a notice of appeal
(2) an assertion of small entity status
(3) an oath/declaration
(4) an authorization to pay by credit card
(5) an amendment

I chose option (1).

So, as you neatly provided, atleast we have these 3 choices. When you get a chance, can you take a look at my comment on Q) Board of Appeals Remanding case to the Examiner (4.03.25a). I cannot find a definitive answer.

Handwritten signature in dark ink are required for:
(1) Registration practice 1.4 (e)
(2) Disciplinary papers/proceedings 1.4 (e)
(3) Any Certified paper 1.4 (f)

1.4(d)(2) says that you can file an “S” signature anywhere you are allowed to electronically file or fax per 1.6(d).
1.4(d)(3) says don’t mess with PTO forms, don’t rearrange the structure, however if you do, take all PTO identification off of it because your on your own.
The last two survivors on the island… 1.4(e) and 1.4(f),

In 1.4(e): -No need to re-post because you provided it above-
I do not believe you are allowed to submit a copy of a signature because it requires an “original hand signature”. When it goes on to state “dark ink or its equivalent”, the word “equivalent” is referring to “dark ink”, i.e., you may submit the original hand signature in black or blue ink (dark ink).

In 1.4(f): “When a document that is required by statute to be certified must be filed, a copy, including a photocopy or facsimile transmission, of the certification is not acceptable.” Clearly no copies, requires originals, and consequently, original hand signatures.

A quick glance at 1.6(d), and we can confirm that 1.6(d) agrees with 1.4(e)/(f) in asmuch as,
1.6(d) states that faxes aren’t allowed in the following situations and starts with these two:
(1)Correspondence as specified in § 1.4(e), requiring an original signature;
(2)Certified documents as specified in § 1.4(f);
No fax = original hand signature (atleast in this situation)

After all that, I still cannot answer your question in post #34, all I can say is that any correspondence involving enrollment, discipline, and certified docs/info has to be submitted with original hand signatures. Oaths, decs, credit card charges, amendments, as far as I know, can all be submitted in fax with copy of signature. …(thud, thud, thud) that’s the sound of my forehead slamming on my desk.

1.4(d)(1) Handwritten signature. Each piece of correspondence, except as provided in paragraphs (d)(2), (d)(3), (e) and (f) of this section, filed in an application, patent file, or other proceeding in the Office which requires a person’s signature, must:
(i) Be an original, that is, have an original handwritten signature personally signed, in permanent dark ink or its equivalent, by that person; OR
(ii) Be a direct or indirect copy, such as a photocopy or facsimile transmission (§ 1.6(d)), of an original. In the event that a copy of the original is filed, the original should be retained as evidence of authenticity. If a question of authenticity arises, the Office may require submission of the original.

Even this says they accept the equivalent of a handwritten signature
(e) Correspondence requiring a person’s signature and relating to registration practice and disciplinary investigations, or disciplinary proceedings must be submitted with an original hand written signature personally signed in permanent dark ink or its equivalent by that person.