Company: HURA
Filing Date: 2025-05-23
Form Type: 424B3
Source: 0001193125-25-125499
Chunk: 433

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-23
Form: 424B3
Chunk 433
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 no guarantee that the applicable authorities, including the FDA in the United States, will agree with TuHURA’s assessment that such
extensions should be granted, and if granted, the length of such extensions.

In some instances, TuHURA has submitted and expects to
submit patent applications directly to the USPTO as provisional patent applications. Corresponding non-provisional patent applications must be filed not later than 12 months after the provisional
application filing date. While TuHURA intends to timely file non-provisional patent applications relating to TuHURA’s provisional patent applications, TuHURA cannot predict whether any such patent
applications will result in the issuance of patents that provide TuHURA with any competitive advantage.

275

TuHURA expects to file U.S. non-provisional
applications and Patent Cooperation Treaty, or PCT, applications that claim the benefit of the priority date of earlier filed provisional applications, when applicable. The PCT system allows a single application to be filed within 12 months of
the original priority date of the patent application and to designate all of the PCT member states in which national patent applications can later be pursued based on the international patent application filed under the PCT. A designated
authority performs an initial search and issues a non-binding opinion as to the patentability of the subject matter. The opinion may be used to evaluate the chances of success of national phase applications in
various jurisdictions, thereby informing the development of a global filing strategy.

Although a PCT application does not itself issue as
a patent, it allows the applicant to conveniently file applications in any of the member states through national-phase applications. At the end of a period of 30-31 months from the earliest priority
date of the patent application (varies by jurisdiction), individual applications can be filed in any of the PCT member states/regions. Use of the PCT system is more cost-effective than direct foreign filings and permits applicants greater
flexibility with respect to budgeting and the selection of foreign jurisdictions.

For all patent applications, TuHURA determines claiming
strategy on a case-by-case basis. Advice of counsel and TuHURA’s business model and needs are always considered. TuHURA seeks to file patents containing claims for
protection of all useful applications of TuHURA’s proprietary technologies and any products, as well as all new applications and/or uses TuHURA discovers for existing technologies and products, assuming these are strategically valuable. TuHURA
continuously reassess the number and type of patent