Term ended no later than Apr 23, 2024 · Medium confidence
20-year base term ended Apr 23, 2024
USPTO later recorded it as expired for non-payment on Mar 16, 2026.
Apr 23, 2004
Apr 23, 2024
Feb 6, 2018
This patent's term is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. Confidence: Medium. from the record
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Apr 23, 2004, when application PCT/IB2004/001693, the earliest non-provisional in its chain, was filed (this one was filed Oct 7, 2015) | Apr 23, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 1 maintenance fees paid | term ended | High confidence |
| USPTO status record | Recorded as expired for non-payment on Mar 16, 2026, after the term ended | no change | High confidence |
| Computed term end | The steps above, in order | no later than Apr 23, 2024 | Medium confidence |
This family
| US 8,168,218 | In force Mar 2028 | Mar 2028 |
| US 8,309,124 | Term ended Apr 2024 | Apr 2024 |
| US 8,394,407 | Term ended no later than Apr 2024 | no later than Apr 2024 |
| US 9,186,332 | Term ended Apr 2024 | Apr 2024 |
| US 9,040,085 | Term ended no later than Apr 2024 | no later than Apr 2024 |
| US 9,884,021 | this patent no later than Apr 2024 | no later than Apr 2024 |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
What's changing
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Apr 23, 2024. We will not guess the cap.