Extensions

To provide a comprehensive overview of US Patent 8993384, including its term adjustments, related applications, and projected expiration date, a direct search of the USPTO database is necessary.

As of April 26, 2026, a search for US Patent 8993384 on the USPTO's Patent Public Search portal would be the primary method to obtain the most accurate and up-to-date official information. The Google Patents entry provides some initial details that can be cross-referenced and expanded upon.

Here's the detailed information for US Patent 8993384:

• Patent Term Adjustments (PTA): The official USPTO record for US8993384, accessible through Patent Center or Patent Public Search, would provide the specific number of days, if any, granted for Patent Term Adjustment. PTA compensates patentees for delays caused by the USPTO during the patent examination process. Common delays include the USPTO failing to issue a first Official Action within 14 months of filing, failing to respond to an applicant's reply within four months, or failing to issue the patent within three years of the filing date. Without direct access to the specific file wrapper or the official PTA calculation for US8993384 on the USPTO website, the exact PTA amount cannot be stated here.

• Patent Term Extensions (PTE): Patent Term Extensions are generally granted for patents covering products (such as human drug products, medical devices, animal drug products, and food or color additive products) that require premarket regulatory approval from a government agency, like the FDA. The purpose is to restore patent term lost during the regulatory review period. Given that US8993384 pertains to "Semiconductor device and fabrication method thereof," it is unlikely to be eligible for a Patent Term Extension under 35 U.S.C. § 156, as it does not appear to cover a product subject to such regulatory review.

• Continuation and Divisional Applications:

  • Continuation Applications: The Google Patents record indicates that US8993384 (application number US13/913,511) has a "Priority to US13/913,511" on the same filing date of 2013-06-09, which is self-referential for the initial application. No other explicit "continuation" applications are immediately listed as directly deriving from this patent on Google Patents.
  • Divisional Applications: The Google Patents entry lists US9318609B2 as a "Priority Application" and also a "Related Child Application (Division)" of US8993384's underlying application US13/913,511. US9318609B2, titled "Semiconductor device with epitaxial structure," was filed on February 12, 2015, and claims priority from the same June 9, 2013, priority date as US8993384. [cite: Original Patent Text] This confirms US9318609B2 is a divisional application.

• Related Family Members:

  • US Family Applications:
    • US13/913,511 (US8993384B2) [cite: Original Patent Text]
    • US14/620,209 (US9318609B2) [cite: Original Patent Text]
  • Publications:
    • US20140361373A1 (publication of the original application) [cite: Original Patent Text]
    • US8993384B2 (granted patent) [cite: Original Patent Text]
    • US20150155386A1 (related publication)
    • US9318609B2 (granted divisional patent) [cite: Original Patent Text]

• Projected Expiration Date: The Google Patents record states an "Anticipated expiration" date of 2033-06-09. [cite: Original Patent Text] This date is typically 20 years from the earliest filing date of the application from which the patent claims priority, plus any Patent Term Adjustment (PTA). The filing date for US8993384 was June 9, 2013. Therefore, 20 years from this date would be June 9, 2033, suggesting that there might be no, or negligible, PTA, or the PTA calculation results in this specific end date.