Extensions

To provide an accurate and comprehensive response regarding US Patent 7,804,891, I will consult the USPTO Patent Center for official information on patent term adjustments (PTA), patent term extensions (PTE), continuation/divisional applications, related family members, and the projected expiration date.

However, I cannot directly access the USPTO Patent Center or proprietary databases. The information I have from the patent text states that US7804891B2 has an "Adjusted expiration" date of 2028-01-11.

General information regarding patent term calculations:

• Patent Term Adjustment (PTA): PTA compensates patent holders for certain administrative delays by the USPTO during the patent prosecution process. It is added to the standard 20-year term from the earliest filing date. The USPTO sets specific timelines for its actions (e.g., first action within 14 months, responses within 4 months, patent issuance within 36 months), and if these are missed, PTA may be granted. However, applicant delays can reduce PTA.
• Patent Term Extension (PTE): PTE is available for patents on certain products, such as human drugs, medical devices, food additives, and animal drugs, to compensate for time lost during regulatory review before commercial marketing. PTE can extend a patent's term by up to five years.
• Continuation and Divisional Applications: For applications filed on or after June 8, 1995, a patent granted on a continuation, divisional, or continuation-in-part (CIP) application will generally have a term that expires 20 years from the filing date of the earliest application to which a benefit is claimed.

Given the information available:

• Patent Number: US7804891B2
• Filing Date: 2005-03-30
• Issue Date: 2010-09-28
• Adjusted Expiration Date (as per Google Patents): 2028-01-11

Without direct access to the USPTO Patent Center to review the patent's prosecution history, I cannot definitively detail any specific PTA or PTE calculations. However, the "Adjusted expiration" date provided on Google Patents (2028-01-11) suggests that some form of adjustment or extension has already been applied, as a patent filed on 2005-03-30 would typically expire on 2025-03-30 (20 years from filing) without any adjustments. The reported expiration date of 2028-01-11 indicates an extension of nearly three years beyond the standard 20-year term.

Continuation and Divisional Applications & Related Family Members:

The Google Patents page lists several "Applications Claiming Priority" and "Family Applications," which often include continuations and divisionals.

• Priority Date: 2004-03-31 (This indicates an earlier application from which US7804891 claims priority)
• Applications Claiming Priority:
  • JP2004108399A / JP4287778B2 (Filed: 2004-03-31)
  • PCT/JP2005/006704 / WO2005096537A1 (Filed: 2005-03-30, Priority Date: 2004-03-31)
• Family Applications:
  • US10/594,985 (This is the application number for US7804891B2 itself, with filing date 2005-03-30 and priority date 2004-03-31)
• Other Versions / Publications:
  • US20070217494A1 (Publication Date: 2007-09-20)

Based on this, US7804891 (application number US10/594,985) claims priority to a Japanese application (JP2004108399A) filed on 2004-03-31 and also appears to be a national stage entry of a PCT application (PCT/JP2005/006704). The term of a U.S. patent that claims priority to an earlier application generally expires 20 years from the filing date of the earliest such application.

Therefore, the earliest priority date is 2004-03-31. The standard 20-year patent term would expire on 2024-03-31. Since the adjusted expiration date is 2028-01-11, there has been a significant term adjustment or extension.

Projected Expiration Date:

Based on the Google Patents information, the projected expiration date for US Patent 7,804,891 is 2028-01-11.