Term ends no later than May 27, 2027 · Low confidence
20-year base term ends May 27, 2027
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.
May 27, 2007
May 27, 2027
May 13, 2014
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. All three maintenance fees are recorded paid; no more fees are due. 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 May 27, 2007, when application 11/754,300, the earliest non-provisional in its chain, was filed (this one was filed Dec 5, 2011); a parent in its chain could not be resolved (the next row) | May 27, 2027 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than May 27, 2027 | Low confidence |
This family
| US 7,521,959 | Lapsed on the fee record Apr 2021 | Apr 2021 |
| US 8,093,922 | Lapsed on the fee record Jan 2024 | Jan 2024 |
| US 8,723,549 | this patent no later than May 2027 | no later than May 2027 |
| US 9,490,814 | Lapsed on the fee record Nov 2024 | Nov 2024 |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| May 27, 2015 Reel 35783, frame 55 | Tabula, Inc. | Tabula (Assignment for the Benefit of Creditors), LLC | Assignment of Assignor's Interest |
| Jul 2, 2015 Reel 36050, frame 792 | Tabula (Assignment for the Benefit of Creditors), LLC | Altera Corporation | Assignment of Assignor's Interest |
| Sep 12, 2025 Reel 73431, frame 309 | Altera Corporation | Barclays Bank PLC, as Collateral Agent | Security Interest |
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 27, 2027. We will not guess the cap.