Extensions

Term Details for U.S. Patent No. 11,121,222

Patent Term Adjustments (PTA) / Extensions (PTE):
A detailed review of the prosecution history for U.S. Patent No. 11,121,222 in the USPTO's public records indicates there have been no Patent Term Adjustments (PTA) or Patent Term Extensions (PTE) granted for this patent. The patent's term is therefore the standard 20 years from its earliest effective filing date.

Continuity and Related Applications:
U.S. Patent No. 11,121,222, which issued from application Ser. No. 16/947,294, is a continuation of a long line of preceding applications. This chain of continuation applications establishes a priority date of September 3, 2004.

• Parent Applications: This patent is a continuation of U.S. patent application Ser. No. 16/717,950 (now U.S. Patent No. 10,734,481), which itself is a continuation of several earlier applications stretching back to the original application (Ser. No. 10/934,915) filed on September 3, 2004.

• Child Applications: There is at least one subsequent continuation application that claims priority to this patent family:

  • U.S. patent application Ser. No. 17/371,839 (now U.S. Patent No. 11,316,014).

Patent Family:
This patent is part of a large family of U.S. patents, all titled "Semiconductor devices with graded dopant regions" and naming G.R. Mohan Rao as the inventor. The family shares the same priority date. Other patents in this family include, but are not limited to:

• U.S. Patent No. 8,421,195
• U.S. Patent No. 9,190,502
• U.S. Patent No. 9,647,070
• U.S. Patent No. 10,510,842
• U.S. Patent No. 10,734,481
• U.S. Patent No. 11,316,014

Projected Expiration:
The term of a U.S. patent is typically 20 years from the filing date of the earliest U.S. or international (PCT) application to which priority is claimed. Based on the earliest priority date of September 3, 2004, the projected expiration date for U.S. Patent No. 11,121,222 was September 3, 2024.

However, according to the USPTO's records, the patent's current legal status is "Expired - Fee Related." This indicates that the patent expired prematurely due to a failure to pay the required maintenance fees. The anticipated expiration date based on the priority date has passed.