Term ended Dec 23, 2022 · Medium confidence
20-year base term ended Dec 23, 2022
Why Medium: A parent in the chain could not be resolved.
Dec 23, 2002
Dec 23, 2022
Jul 3, 2007
This patent's term is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. All three maintenance fees were paid, so no fee lapse ended it. 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 Dec 23, 2002, when application PCT/US2002/040891, the earliest non-provisional in its chain, was filed (this one was filed May 8, 2006); a parent in its chain could not be resolved (the next row) | Dec 23, 2022 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,141,547) | resolves to Dec 23, 2022, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Dec 23, 2022 | Medium confidence |
This family
| Application PCT/US2002/040891 | PCT application no patent term | no patent term |
| Application PCT/US2004/001369 | PCT application no patent term | no patent term |
| US 7,141,547 | In force Apr 2027 | Apr 2027 |
| Application PCT/US2005/004041 | PCT application no patent term | no patent term |
| US 7,521,424 | Term ended Dec 2022 | Dec 2022 |
| US 7,592,010 | Term ended Dec 2023 | Dec 2023 |
| US 7,238,667 | this patent Dec 2022 | Dec 2022 |
| US 7,847,079 | Lapsed on the fee record Dec 2018 | Dec 2018 |
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.
A terminal disclaimer resolved from the filed document, referencing US 7,141,547, ends no earlier than this term, so it caps nothing.