Extensions

For US Patent 10,539,851, here's a detailed breakdown of its patent term information and related applications:

Patent Term Adjustments (PTA) and Extensions (PTE)

• Patent Term Adjustment (PTA): The patent was filed on March 6, 2018, and issued on January 21, 2020. PTA can be granted to compensate for delays by the USPTO during the prosecution of a patent application. Delays can 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 or four months of paying the issue fee. The patent text does not explicitly state the amount of PTA granted. However, the USPTO automatically determines and issues a notice of PTA with the patent.
• Patent Term Extension (PTE): PTE is available under the Hatch-Waxman Act for patents claiming products that require regulatory approval (e.g., human and veterinary pharmaceuticals, food additives, color additives, and medical devices) to restore patent term lost during the regulatory review process. There is no indication within the patent document or the provided search results that US10539851 covers a product subject to regulatory review that would qualify it for PTE.

Continuation and Divisional Applications

• Continuation Applications: US Patent 10,539,851 is itself a patent granted from application number US15/913,669, filed on 2018-03-06. The patent text also lists several "Priority Applications" and "Applications Claiming Priority". It has a related "Continuation-In-Part" application: US16/747,353, which later issued as US11386865B2, with a priority date of 2018-03-06 and a filing date of 2020-01-20.
• Divisional Applications: A divisional application is filed to pursue an invention that was not chosen in a parent application, typically to overcome a restriction requirement from the examiner. The provided information does not explicitly state if US10539851 is a divisional application or has any divisional applications claiming priority from it.
• Related Family Members: The patent family includes several national and international applications claiming priority from the same March 6, 2018, date:
  • US15/913,669 (US10539851B2 itself)
  • EP19160709.2A (EP3537211A1)
  • CN201910168235.4A (CN110231742A)
  • US16/747,353 (US11386865B2)
  • US17/750,277 (US11694649B2)

Projected Expiration Date

For utility patents filed on or after June 8, 1995, the general patent term is 20 years from the earliest filing date of the application or any application for which a benefit is claimed.

• Filing Date: March 6, 2018.
• Priority Date: March 6, 2018.

Based on the 20-year term from the filing date, without any adjustments, the patent would expire on March 6, 2038. The Google Patents legal status section also indicates an "Anticipated expiration" date of "2038-03-06". Any PTA would extend this date, while a terminal disclaimer could shorten it. The provided information does not indicate the existence of any terminal disclaimers.