When can prior art be submitted under 37 CFR 1.501(a)?

Prior art can be submitted under 37 CFR 1.501(a) at any time during the period of enforceability of a patent. The MPEP explicitly states: 37 CFR 1.501(a) permits any person at any time during the period of enforceability of a patent to file a written submission. The period of enforceability typically includes: The entire term…

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When can an ex parte reexamination be requested?

According to MPEP 2211, an ex parte reexamination can be requested “at any time during the period of enforceability of a patent“. This is established by 37 CFR 1.510(a). The period of enforceability is generally determined by adding 6 years to the patent’s expiration date, but may be extended in cases of pending litigation. To…

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Can a supplemental examination be requested at any time during a patent’s life?

The MPEP 2815 addresses the timing of supplemental examination requests: “A determination on the supplemental examination request may be made at any time during the period of enforceability of a patent.” This statement indicates that a supplemental examination can be requested as long as the patent is enforceable. The period of enforceability typically extends throughout…

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How does supplemental examination affect patent enforceability?

Supplemental examination can have a significant impact on patent enforceability. According to the MPEP: “35 U.S.C. 257(c) specifies the effect of a supplemental examination under 35 U.S.C. 257(a) and any resulting ex parte reexamination under 35 U.S.C. 257(b) on the enforceability of the patent.” Generally, if information is considered, reconsidered, or corrected during supplemental examination,…

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