US 8,543,628 · Application 12/238,893 · Granted Sep 24, 2013
US 8,543,628
Method and system of digital signal processing
Estimated expiration
—
- Maintenance fee lapse detected.
- Patent may have expired due to maintenance fees: Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Earliest effective filing
Sep 26, 2008
+ 20 years
—
PTA +0d
—
No TD
—
Final
—
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
- September 26, 2008
- Earliest effective filing
- September 26, 2008
- Issue date
- September 24, 2013
- PTA
- 0 days
- Base expiry (before PTA)
- —
September 26, 2008 + 20 years = —
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
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Application 12/238,893 · US 8,543,628
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www.patentreply.ai/tools/patent-expiration/US8543628Data 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.