Lapsed May 20, 2026 on the fee record · High confidence
20-year base term ends Feb 23, 2031
Third maintenance fee unpaid; grace period ended.
Held by Google LLC
Filed Aug 17, 2011 as application 13/199,108 · Granted May 20, 2014
Base term, 20 years from filing, plus 84 days of patent term adjustment (USPTO delay)
Today
Lapsed May 20, 2026
2011
2031
Clock starts
Feb 23, 2011
Feb 23, 2011
No longer in force
May 20, 2026
May 20, 2026
Granted
May 20, 2014
May 20, 2014
Term would have run to
May 18, 2031
May 18, 2031
base term
patent term adjustment
after the term ends
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
84
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
Its term would have run to May 18, 2031: its 20-year base term plus 84 days of term adjustment for prosecution delay. 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 Feb 23, 2011, when application 13/033,573, the earliest non-provisional in its chain, was filed (this one was filed Aug 17, 2011) | Feb 23, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +84 days, USPTO patent term adjustment record | May 18, 2031 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | lapsed May 20, 2026 | High confidence |
| Computed term end | The steps above, in order | May 20, 2026 | High 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 | this patent 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 | In force 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 |
|---|---|---|---|
| Jun 5, 2012 Reel 28323, frame 297 | Nest Labs, Inc. | Wells Fargo Bank, National Association | Negative Pledge and Covenant |
| Dec 18, 2012 Reel 29494, frame 832 | Huppi, Brian; Filson, John Benjamin; Bould, Fred; Sloo, David; Rogers, Matthew Lee; Fadell, Anthony Michael | Nest Labs, Inc. | Assignment of Assignor's Interest |
| 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 84 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
185
later US patents cite this one
That is top 5% 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
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.