[Patentpractice] [Patentcenter] What's minimum font size for drawings?

[David Boundy]

 Thank you all.  I have a really crowded drawing (U.S only., not PCT).  I
asked draftsman to see how it looks at 10 point, and if still too crowded,
use 9 point.  I'll give you a report once the PTO either accepts or
bounces.

On Mon, Sep 29, 2025 at 10:04 AM Dale Quisenberry <dale at quisenberrylaw.com>
wrote:

> David,
>
> In view that as being the responsibility of the patent draftsman.  He/she
> should know the answer.
>
> Best regards,
>
> Dale
>
> C. Dale Quisenberry
> Quisenberry Law PLLC
> 832.680.1000
>
> Sent from my iPhone
>
> On Sep 29, 2025, at 9:43 AM, David Boundy via Patentcenter <
> patentcenter at oppedahl-lists.com> wrote:
>
> 
> 37 CFR § 1.84(p)(1) says text in drawings must be 1/8 inch high.   At 72
> points to the inch, that's 9 point.  But after leaving room for descenders
> and inter-line spacing, I assume that 9 point is too small.
> Has anyone figured out what point size I need to ask for from my formal
> drawings guy?   Thanks
>
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*David Boundy *| Partner | Potomac Law Group, PLLC

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Tel (646) 472-9737 | Fax: (202) 318-7707

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