What happens if the 3-month period for deciding a reexamination request ends on a non-business day?

If the 3-month period for deciding a reexamination request ends on a weekend or federal holiday, the USPTO must issue the determination by the preceding business day. MPEP 2241 specifically states: “If the 3-month period ends on a Saturday, Sunday, or federal holiday within the District of Columbia, then the determination must be mailed by…

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What is the difference in priority between reexamination proceedings and reissue applications?

According to MPEP 2261, there is no inherent difference in priority between reexamination proceedings and reissue applications at the United States Patent and Trademark Office (USPTO). The key factor determining their priority is whether they are involved in litigation. The MPEP states: “Any cases involved in litigation, whether they are reexamination proceedings or reissue applications,…

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Can a reexamination proceeding itself be involved in an interference?

No, a reexamination proceeding itself cannot be involved in an interference proceeding. The MPEP clearly states: “Although a patent being reexamined via a reexamination proceeding may become involved in an interference proceeding, the reexamination proceeding itself can never be involved in an interference proceeding.“ This is based on the language of 35 U.S.C. 135(a), which…

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What is the Reexamination e-File system?

The Reexamination e-File system is a digital platform for viewing and managing reexamination proceeding documents. According to MPEP 2235: “The papers of a reexamination proceeding may be viewed on IFW. Patent Data Portal provides information for the reexamination proceeding as to the patent owner and requester, contents, status, and related Office proceedings (applications, patents and…

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