Term ends no later than Jan 2, 2027 · Medium confidence
20-year base term ended Oct 28, 2025
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.
Oct 28, 2005
Jan 2, 2027
Mar 20, 2012
This patent's term runs 431 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. All three maintenance fees are recorded paid; no more fees are due. 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 Oct 28, 2005, when application 11/261,988, the earliest non-provisional in its chain, was filed (this one was filed Feb 13, 2009) | Oct 28, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +431 days, USPTO patent term adjustment record | Jan 2, 2027 | 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 Jan 2, 2027 | Medium confidence |
This family
| US 7,305,245 | Term ended Jul 2026 | Jul 2026 |
| US 8,244,272 | Lapsed on the fee record Aug 2024 | Aug 2024 |
| US 7,493,127 | In force Feb 2027 | Feb 2027 |
| US 7,474,897 | In force Mar 2027 | Mar 2027 |
| US 7,818,017 | Term ended no later than Oct 2026 | no later than Oct 2026 |
| US 7,769,396 | Term ended no later than Oct 2026 | no later than Oct 2026 |
| US 8,140,094 | this patent no later than Jan 2027 | no later than Jan 2027 |
| Application 12/906,338 | Abandoned not computed | not computed |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Oct 19, 2009 Reel 23388, frame 254 | Morgan, Edward James; Shean, Michael George; Alizadeh-shabdiz, Farshid; Jones, Russel Kipp | Skyhook Wireless, Inc. | Assignment of Assignor's Interest |
| Jan 8, 2025 Reel 69853, frame 620 | Skyhook Wireless, Inc. | Qualcomm Incorporated | Assignment of Assignor's 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 Jan 2, 2027. We will not guess the cap.