Term ends no later than Jul 31, 2029 · Low confidence
20-year base term ends Jul 31, 2029
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Jul 31, 2009
Jul 31, 2029
Jun 23, 2015
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. 2 of 3 maintenance fees are paid so far. Confidence: Low. from the record
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jul 31, 2009, when application 12/533,977, the earliest non-provisional in its chain, was filed (this one was filed Dec 9, 2013); a parent in its chain could not be resolved (the next row) | Jul 31, 2029 | 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 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than Jul 31, 2029 | Low confidence |
This family
| US 8,115,457 | In force Oct 2030 | Oct 2030 |
| US 9,065,340 | this patent no later than Jul 2029 | no later than Jul 2029 |
| US 9,735,665 | In force Jul 2029 | Jul 2029 |
| US 10,153,687 | Lapsed on the fee record Dec 2022 | Dec 2022 |
| US 10,608,525 | Lapsed on the fee record Mar 2024 | Mar 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 Jul 31, 2029. We will not guess the cap.