Extensions

To detail the patent term adjustments (PTA), patent term extensions (PTE), continuation applications, divisional applications, related family members, and the projected expiration date for US patent 10701173, I will use information available from the USPTO.

A US utility patent generally expires 20 years from the earliest filing date of the application. However, this term can be adjusted by Patent Term Adjustment (PTA) or Patent Term Extension (PTE).

Patent Term Adjustment (PTA):
PTA is granted to compensate patentees for certain delays caused by the USPTO during the prosecution of a patent application. These delays can include the USPTO failing to:

• Issue a first office action within 14 months of filing.
• Respond to an applicant's reply within four months.
• Issue a patent within four months of payment of the issue fee.
• Issue a patent within three years from the actual filing date (with some exceptions).

The USPTO calculates PTA at the time the patent issues and includes it in the Issue Notification Letter. While the provided patent document for US10701173 does not explicitly state the PTA amount, the Google Patents interface indicates an "Anticipated expiration" date of 2034-12-15. This date suggests that PTA has been applied, as the original priority date is 2014-12-15, which would typically lead to a 2034-12-15 expiration without adjustment. However, given the filing date of 2017-05-08 for US15/588,935 and a publication date of 2020-06-30, delays in prosecution might have occurred. Without the specific PTA calculation from the USPTO file wrapper, the exact amount cannot be determined, but the provided expiration date implies a calculation has been made.

Patent Term Extension (PTE):
PTE is a different mechanism available for patents on certain products (like human drugs, medical devices, food or color additives, and veterinary biological products) to restore patent term lost due to premarket government approval processes. US10701173 relates to "caching in a content delivery framework," which is a software and telecommunications-related invention, not a product requiring regulatory approval from agencies like the FDA. Therefore, it is highly unlikely that US10701173 would be eligible for PTE.

Continuation Applications, Divisional Applications, and Related Family Members:

• Continuation Applications: A continuation application allows an applicant to pursue new claims based on the same specification and drawings as a previously filed "parent" application, sharing the same priority date.
• Divisional Applications: A divisional application is filed when the USPTO determines that an application contains claims to more than one invention. The applicant then "divides" the claims into separate applications.

The patent document for US10701173 explicitly lists its relationship to other applications. It states, "This application is a continuation of and claims the benefit of priority from U.S. patent application Ser. No. 14/570,512, entitled 'CACHING IN A CONTENT DELIVERY FRAMEWORK,' filed Dec. 15, 2014." This identifies US14/570,512 as the parent application. [cite: US10701173B2]

The "Priority Applications" section of US10701173 lists the following applications that claim priority from the original filing date of 2014-12-15:

• US15/588,935 (US10701173B2 itself) [cite: US10701173B2]
• US16/909,245 (US11425223B2) [cite: US10701173B2]
• US17/891,675 (US11818229B2) [cite: US10701173B2]
• US18/388,844 (US20240080373A1) [cite: US10701173B2]

The "Related Parent Applications" section confirms that US14/570,512 (US9648127B2) is a parent application. [cite: US10701173B2]

The "Related Child Applications" section lists US16/909,245 (US11425223B2) as a continuation. [cite: US10701173B2]

The "Family Applications" section, which represents the patent family, includes:

• US14/570,512 (US9648127B2) [cite: US10701173B2]
• US15/588,935 (US10701173B2) [cite: US10701173B2]
• US16/909,245 (US11425223B2) [cite: US10701173B2]
• US17/891,675 (US11818229B2) [cite: US10701173B2]
• US18/388,844 (US20240080373A1) [cite: US10701173B2]
• US19/263,989 (US20260006107A1) [cite: US10701173B2]

These indicate a series of continuation applications originating from the priority date of US14/570,512 (December 15, 2014). No explicit divisional applications are mentioned in the provided patent text, but continuation applications are clearly present.

Projected Expiration Date:
For utility patents filed on or after June 8, 1995, the patent term generally expires 20 years from the earliest filing date of the application, subject to any patent term adjustments or extensions.

The earliest priority date for US10701173 is December 15, 2014, from U.S. patent application Ser. No. 14/570,512. [cite: US10701173B2]
Therefore, the base 20-year patent term would extend to December 15, 2034.

The "Anticipated expiration" listed on the Google Patents page for US10701173B2 is 2034-12-15. [cite: US10701173B2] This date aligns with the 20-year term from the earliest priority date and suggests that any PTA awarded did not extend the term beyond this date, or that any applicant delay negated USPTO delay. Without access to the specific PTA calculation from the USPTO file history for US10701173, it is not possible to confirm the exact PTA amount or factors.