Term ends no later than May 20, 2029 · Low confidence
20-year base term ends Dec 19, 2028
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.
Dec 19, 2008
May 20, 2029
Mar 22, 2016
This patent's term runs 152 days past its 20-year base term on 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 Dec 19, 2008, when application 12/318,020, the earliest non-provisional in its chain, was filed (this one was filed Jul 11, 2013); a parent in its chain could not be resolved (the next row) | Dec 19, 2028 | 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 | +152 days, USPTO patent term adjustment record | May 20, 2029 | 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 May 20, 2029 | Low confidence |
This family
| US 8,437,741 | In force no later than Aug 2031 | no later than Aug 2031 |
| US 8,254,886 | In force no later than Jul 2029 | no later than Jul 2029 |
| Application PCT/US2010/048726 | PCT application no patent term | no patent term |
| US 8,744,180 | In force Apr 2032 | Apr 2032 |
| US 8,825,011 | In force Mar 2029 | Mar 2029 |
| US 9,295,071 | this patent no later than May 2029 | no later than May 2029 |
| US 9,332,412 | In force Jun 2029 | Jun 2029 |
| US 9,313,639 | In force Jun 2029 | Jun 2029 |
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 May 20, 2029. We will not guess the cap.