US 12,452,408 · Application 18/437,885 · Granted Oct 21, 2025
US 12,452,408
Image encoding/decoding method and device
Estimated expiration
March 25, 2039
12y 162d remaining
- Could not fetch continuity data for application PCTKR2019003443: Resource not found (404)
Earliest effective filing
Mar 25, 2019
+ 20 years
Mar 25, 2039
PTA +0d
Mar 25, 2039
No TD
—
Final
Mar 25, 2039
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.
Calculation details
Base term
- Filing date
- February 9, 2024
- Earliest effective filing
- March 25, 2019
- Issue date
- October 21, 2025
- PTA
- 0 days
- Base expiry (before PTA)
- March 25, 2039
March 25, 2019 + 20 years = March 25, 2039
- Continuation of application 18/366,399, filed Aug 7, 2023, issued as US 11,956,425
- Continuation of application 17/874,536, filed Jul 27, 2022, issued as US 12,341,949
- Divisional of application 16/980,680, filed Sep 14, 2020, issued as US 11,438,577
- National stage entry of application PCTKR2019003443, filed Mar 25, 2019
- National stage entry of application PCTKR2019003443, filed Mar 25, 2019
- Divisional of application 16/980,680, filed Sep 14, 2020, issued as US 11,438,577
- National stage entry of application PCTKR2019003443, filed Mar 25, 2019
- Continuation of application 17/874,536, filed Jul 27, 2022, issued as US 12,341,949
- Divisional of application 16/980,680, filed Sep 14, 2020, issued as US 11,438,577
- National stage entry of application PCTKR2019003443, filed Mar 25, 2019
Terminal disclaimers
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 18/437,885 · US 12,452,408
You have the date. Your AI can have the file.
PatentReply compiles the prosecution history behind US 12,452,408: the claims as filed and as allowed, every Office Action and response, and the cited references, with each answer pointing back to the filed passage.
One new public application a month is free. The first compile takes a few minutes.
Strategy and filing changes require your approval.
Permanent link
www.patentreply.ai/tools/patent-expiration/US12452408Data 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.