Also listed on Microsoft Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Nov 27, 2027 · High confidence
20-year base term ends Jun 29, 2027
Filed Mar 26, 2014 as application 14/226,421 · Granted Dec 31, 2019
Base term plus 151 days of patent term adjustment (USPTO delay)
Today
2007
2027
Clock starts
Jun 29, 2007
Jun 29, 2007
Term ends
Nov 27, 2027
Nov 27, 2027
Granted
Dec 31, 2019
Dec 31, 2019
base term
patent term adjustment
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
151
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,762,880, to Nov 27, 2027. The term already ends on or before that date, so the cap shortened nothing.
1 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
12
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 151 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 1 of 1 maintenance fees is paid so far. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jun 29, 2007, when application 11/823,999, the earliest non-provisional in its chain, was filed (this one was filed Mar 26, 2014) | Jun 29, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +151 days, USPTO patent term adjustment record | Nov 27, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,762,880) | resolves to Nov 27, 2027, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 27, 2027 | High confidence |
This family
| US 8,201,103 | In force Jun 2029 | Jun 2029 |
| US 8,484,578 | Lapsed on the fee record Jul 2025 | Jul 2025 |
| US 8,762,880 | Lapsed on the fee record Jun 2026 | Jun 2026 |
| Application PCT/US2009/046344 | PCT application no patent term | no patent term |
| Application PCT/US2009/046341 | PCT application no patent term | no patent term |
| US 9,098,473 | In force Jul 2028 | Jul 2028 |
| US 9,619,116 | Lapsed on the fee record Apr 2025 | Apr 2025 |
| US 10,521,073 | this patent Nov 2027 | Nov 2027 |
8 of 12 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Jan 9, 2015 Reel 39025, frame 454 | Microsoft Corporation | Microsoft Technology Licensing, LLC | Assignment of Assignor's Interest |
| Oct 3, 2017 Reel 43770, frame 744 | Dukhon, Marina; Guntaur, Paula; Satterfield, Jesse Clay; Alberts, Amy E. | Microsoft Corporation | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Nov 2027
Term ends Nov 27, 2027. No further fees fall due before then
Note
The 151 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,762,880, ends no earlier than this term, so it caps nothing.
Citations
48
later US patents cite this one
That is top 5% of utility patents granted in 2019 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.