[Patentpractice] Traps for the Unwary When Filing PCT With 119a-d foreign priority claim?

[guyvmann at gvmlaw.net]

Thanks, Tim.  The article may prove useful to help convince non-practitioners to look again.

Hope springs eternal, I guess.

 

Guy

 

 

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From: Patentpractice <patentpractice-bounces at oppedahl-lists.com> On Behalf Of Timothy Snowden via Patentpractice
Sent: Tuesday, October 21, 2025 8:00 AM
To: patentpractice at oppedahl-lists.com
Cc: Timothy Snowden <tdsnowden at outlook.com>
Subject: Re: [Patentpractice] Traps for the Unwary When Filing PCT With 119a-d foreign priority claim?

 

I've been able to request Chinese DAS codes before issue, but I believe Chinese counsel has to request the CNIPA to deposit the application and give a DAS code. IIRC, it costs money to do that.

Here's a good article: China DAS Code: Access Electronic Priority Documents – GBA IP LAWYER <https://www.gbaiplawyer.com/das-code-in-china/> 

On 10/21/2025 7:52 AM, Flash via Patentpractice wrote:

Sorry if this is the wrong listserv. On my phone with limited selectivity.  

 

Is anyone else having trouble getting a DAS access code for a Chinese utility application?  

I’m being told that the code isn’t made available until the patent issues, which doesn’t sound right.  It’s coming to me through non-practitioners, which may be the problem of course. I’m not (yet anyway) in touch directly with Chinese patent counsel. 

But finding a work around is proving difficult.  Any suggestions?

 

Guy Vincent Manning 

guyvmann at flash.net <mailto:guyvmann at flash.net> 

 





On Oct 17, 2025, at 2:36 PM, Carl Oppedahl via Patentpractice  <mailto:patentpractice at oppedahl-lists.com> <patentpractice at oppedahl-lists.com> wrote:

 

What you are doing is smart.  It probably gets you some extra US patent term.

You didn't say which RO the PCT application was filed in.  Maybe the RO is a depositing office in the DAS system.

On 10/17/2025 1:28 PM, Jeffrey S. Kapteyn via Patentpractice wrote:

A PCT was filed less than one year ago and the PCT does not claim priority to any prior applications.

When filing a U.S. 111a application with a foreign priority claim under 119a-d to the PCT in this situation, are there any traps for the unwary? 

I’m assuming one lists the PCT in the Foreign Priority section of the ADS so it is not a bypass. 

For example, what qualifies as a “certified copy” of the PCT Application?


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