Lapsed Feb 24, 2019 on the fee record · High confidence
20-year base term ended Jun 30, 2026
First maintenance fee unpaid; grace period ended.
Held by Snaptrack, Inc.
Filed Jan 23, 2012 as application 13/356,447 · Granted Feb 24, 2015
Base term, 20 years from filing, plus 158 days of patent term adjustment (USPTO delay)
Today
Lapsed Feb 24, 2019
2006
2026
Clock starts
Jun 30, 2006
Jun 30, 2006
No longer in force
Feb 24, 2019
Feb 24, 2019
Granted
Feb 24, 2015
Feb 24, 2015
Term would have run to
Dec 5, 2026
Dec 5, 2026
base term
patent term adjustment
after the term ends
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
158
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
5
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 Dec 5, 2026: its 20-year base term plus 158 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 Jun 30, 2006, when application 11/478,702, the earliest non-provisional in its chain, was filed (this one was filed Jan 23, 2012) | Jun 30, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +158 days, USPTO patent term adjustment record | Dec 5, 2026 | 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 | 0 of 2 maintenance fees paid | lapsed Feb 24, 2019 | High confidence |
| Computed term end | The steps above, in order | Feb 24, 2019 | High confidence |
This family
| US 7,527,998 | In force Dec 2026 | Dec 2026 |
| Application PCT/US2007/011812 | PCT application no patent term | no patent term |
| US 8,102,590 | Lapsed on the fee record Jan 2020 | Jan 2020 |
| US 7,952,787 | Lapsed on the fee record May 2019 | May 2019 |
| US 8,964,280 | this patent Feb 2019 | Feb 2019 |
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 14, 2014 Reel 32669, frame 262 | Tung, Ming-hau; Kogut, Lior | Qualcomm Mems Technologies, Inc. | Assignment of Assignor's Interest |
| Apr 15, 2014 Reel 32676, frame 183 | Qualcomm Mems Technologies, Inc. | Qualcomm Incorporated | Assignment of Assignor's Interest |
| Apr 15, 2014 Reel 32678, frame 130 | Qualcomm Incorporated | Qualcomm Mems Technologies, Inc. | Assignment of Assignor's Interest |
| Aug 31, 2016 Reel 39891, frame 1 | Qualcomm Mems Technologies, Inc. | Snaptrack, Inc. | 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
Note
The 158 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
14
later US patents cite this one
That is above the median of utility patents granted in 2015 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.