E‑III, Examination proceedings (ex parte) - Guidelines for Examination
Examination proceedings (ex parte) 

As no other party is affected, examining divisions may adopt a more liberal approach than opposition divisions. Therefore, examining divisions should consider allowing the presentation of a computer-generated slideshow even if the slides are not communicated in advance of the oral proceedings, provided that:

the examining division feels able to deal with this late-filed material without unduly lengthening the proceedings. The same considerations as for other late-filed facts and evidence apply (see E‑III, 8.6);
the room in which oral proceedings are held provides adequate basic facilities (e.g. a screen); 
the submissions contribute to the resolution of the questions at issue. 
The same considerations apply to oral proceedings before the Legal Division where they constitute ex parte proceedings.

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