US 9,462,404 · Application 13/588,139 · Granted Oct 4, 2016
US 9,462,404
Compatible multi-channel coding/decoding
Estimated expiration
December 15, 2025
Expired 268 days ago
Earliest effective filing
Oct 2, 2003
+ 20 years
Oct 2, 2023
PTA +960d
May 19, 2026
TD cap (US 7,447,317)
Dec 15, 2025
Final
Dec 15, 2025
This calculation includes patent term adjustment (PTA) under 35 U.S.C. §154(b). Patent term extension (PTE) under 35 U.S.C. §156 (for FDA-regulated products) is not included. Terminal disclaimers can affect PTA (In re Cellect, LLC).
Calculation details
Base term
- Filing date
- August 17, 2012
- Earliest effective filing
- October 2, 2003
- Issue date
- October 4, 2016
- PTA
- +960 days
- Base expiry (before PTA)
- October 2, 2023
October 2, 2003 + 20 years = October 2, 2023 + 960 PTA days = May 19, 2026
- Continuation of application 12/206,778, filed Sep 9, 2008, issued as US 8,270,618
- Continuation of application 10/679,085, filed Oct 2, 2003, issued as US 7,447,317
- Continuation of application 10/679,085, filed Oct 2, 2003, issued as US 7,447,317
Terminal disclaimers
TD caps expiration to December 15, 2025 (earliest expiring referenced patent: US 7,447,317)
US 8,270,618· Application 12/206,778Capping patent
Compatible multi-channel coding/decoding
- Filing date
- Sep 9, 2008
- Earliest effective filing
- Oct 2, 2003
- Issue date
- Sep 18, 2012
- PTA
- +983 days
- Calculated expiration
- Jun 11, 2026
Continuation of 10/679,085, filed Oct 2, 2003, issued as US 7,447,317
Oct 2, 2003 + 20y + 983d PTA = Jun 11, 2026
US 7,447,317· Application 10/679,085Capping patent
Compatible multi-channel coding/decoding by weighting the downmix channel
- Filing date
- Oct 2, 2003
- Earliest effective filing
- Oct 2, 2003
- Issue date
- Nov 4, 2008
- PTA
- +805 days
- Calculated expiration
- Dec 15, 2025
Oct 2, 2003 + 20y + 805d PTA = Dec 15, 2025
US 9,462,404· Application 13/588,139(from application 13/588,139)
Compatible multi-channel coding/decoding
- Filing date
- Aug 17, 2012
- Earliest effective filing
- Oct 2, 2003
- Issue date
- Oct 4, 2016
- PTA
- +960 days
- Calculated expiration
- May 19, 2026
Continuation of 12/206,778, filed Sep 9, 2008, issued as US 8,270,618
Continuation of 10/679,085, filed Oct 2, 2003, issued as US 7,447,317
Continuation of 10/679,085, filed Oct 2, 2003, issued as US 7,447,317
Oct 2, 2003 + 20y + 960d PTA = May 19, 2026
Patent term extension under 35 U.S.C. §156, which can apply to certain drug, biologic, animal drug and medical device patents, is not included in this calculation. How PTE is calculated
The prosecution record for your AI
Application 13/588,139 · US 9,462,404
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www.patentreply.ai/tools/patent-expiration/US9462404Data sourced from public USPTO records. This tool provides informational estimates and should not be relied upon as legal advice. Always verify patent expiration dates independently, especially where patent term extension, terminal disclaimers, or unusual continuity issues may apply.