The parent application was filed in 2019 based on a provisional filed in 2018. I didn’t fast track the parent, thus it is still pending, and it contained enough material for several patents. Since then I’ve filed 2 CIPs and a divisional, and will be filing a new CIP of one CIP where I need material from the parent that I deleted in the intervening CIPs. Can I do this and still keep the parent’s priority? And if I instead file this new application as a CIP directly on the parent, also incorporating new material from the intervening CIP, will that trip me up?

  • If the parent is still pending how is there necessarily an interviewing application?
    – George White
    Commented Nov 23, 2021 at 16:32
  • @GeorgeWhite I assume you meant intervening not interviewing.
    – Eric S
    Commented Nov 23, 2021 at 16:45
  • Yes, Thanks Eric
    – George White
    Commented Nov 23, 2021 at 16:59

1 Answer 1



Since the content you need is in an application that is pending the new application can get the info directly, there is no intervening application. Just claim priority to the parent and forget the others.

If the patent was no longer pending but overlapped a currently pending application you could still reach back. It would take a wordier sentence claiming priority.

Regarding CIPs - they are not magic. On its face, CIP only has the priority date of its filing. If some prior art comes up that is dated before the filing it can be cited. The burden then is on you to establish that specific claims are fully supported in the application from which priority is claimed.

  • I need a disclosure in the parent that was deleted from the CIP, and I also need a disclosure in the CIP that wasn't in the parent, but you say just file a new CIP of the parent, including all the disclosures of both?
    – Lou
    Commented Nov 24, 2021 at 3:11
  • If you want something unique from a CIP and it is co-pending then you need an “and” in the priority claim sentence. Two separate applications claimed, the parent and the CIP.
    – George White
    Commented Nov 24, 2021 at 3:26
  • Thanks. I didn't realize a CIP could have two parents, so that solves the problem.
    – Lou
    Commented Nov 24, 2021 at 15:10

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