Term ends no later than Jan 29, 2032 · Medium confidence
20-year base term ends Feb 23, 2031
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.
Held by Google LLC
Filed Oct 7, 2011 as application 13/269,501 · Granted Dec 23, 2014
Base term plus 340 days of patent term adjustment (USPTO delay)
Today
2011
2032
Clock starts
Feb 23, 2011
Feb 23, 2011
Ends no later than
Jan 29, 2032
Jan 29, 2032
Granted
Dec 23, 2014
Dec 23, 2014
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
340
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
3 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
126
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 340 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
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 Feb 23, 2011, when application 13/033,573, the earliest non-provisional in its chain, was filed (this one was filed Oct 7, 2011) | Feb 23, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +340 days, USPTO patent term adjustment record | Jan 29, 2032 | 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 29, 2032 | Medium confidence |
This family
| US 9,223,323 | In force Oct 2031 | Oct 2031 |
| US 9,605,858 | In force Sep 2034 | Sep 2034 |
| US 8,752,771 | In force Aug 2032 | Aug 2032 |
| US 9,494,332 | In force Feb 2035 | Feb 2035 |
| US 8,727,611 | Lapsed on the fee record May 2026 | May 2026 |
| US 9,026,254 | In force Nov 2032 | Nov 2032 |
| US 9,261,287 | In force Dec 2033 | Dec 2033 |
| US 8,918,219 | this patent no later than Jan 2032 | no later than Jan 2032 |
8 of 126 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 |
|---|---|---|---|
| Apr 25, 2012 Reel 28100, frame 823 | Sloo, David; Fadell, Anthony Michael; Rogers, Matthew Lee; Plitkins, Michael; Matas, Michael James; Bould, Fred | Nest Labs, Inc. | Assignment of Assignor's Interest |
| Jun 5, 2012 Reel 28323, frame 297 | Nest Labs, Inc. | Wells Fargo Bank, National Association | Negative Pledge and Covenant |
| Feb 10, 2014 Reel 32238, frame 959 | Wells Fargo Bank, National Association | Nest Labs, Inc. | Release of Security Interest in Patents |
| Aug 19, 2014 Reel 33568, frame 693 | Nest Labs, Inc. | Google Inc. | Assignment of Assignor's Interest |
| Oct 2, 2017 Reel 44277, frame 1 | Google Inc. | Google LLC | Change of Name |
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
Jan 2032
Term ends no later than Jan 29, 2032. No further fees fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 340 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Jan 29, 2032. We will not guess the cap.
Citations
312
later US patents cite this one
That is top 1% of utility patents granted in 2014 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.