Lapsed Jan 5, 2022 on the fee record · Medium confidence
20-year base term ended Apr 17, 2021
Why Medium: A parent in the chain could not be resolved.
Third maintenance fee unpaid; grace period ended.
Held by Fitbit, Inc.
Filed Jun 30, 2006 as application 11/479,897 · Granted Jan 5, 2010
Base term, 20 years from filing, plus 652 days of patent term adjustment (USPTO delay)
Today
Lapsed Jan 5, 2022
2001
2026
Clock starts
Apr 17, 2001
Apr 17, 2001
No longer in force
Jan 5, 2022
Jan 5, 2022
Granted
Jan 5, 2010
Jan 5, 2010
Term would have run to
Jan 29, 2023
Jan 29, 2023
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
652
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.
24
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 Jan 29, 2023: its 20-year base term plus 652 days of term adjustment for prosecution delay. 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 Apr 17, 2001, when application 09/837,115, the earliest non-provisional in its chain, was filed (this one was filed Jun 30, 2006); a parent in its chain could not be resolved (the next row) | Apr 17, 2021 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +652 days, USPTO patent term adjustment record | Jan 29, 2023 | 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 Jan 5, 2022 | High confidence |
| Computed term end | The steps above, in order | Jan 5, 2022 | Medium confidence |
This family
| Application 09/837,115 | Abandoned not computed | not computed |
| Application 09/875,555 | Abandoned not computed | not computed |
| US 7,044,394 | Term ended Feb 2024 | Feb 2024 |
| Application 10/800,821 | Abandoned not computed | not computed |
| US 7,472,829 | In force Apr 2027 | Apr 2027 |
| US 7,543,739 | Term ended Nov 2022 | Nov 2022 |
| US 7,246,752 | Term ended Dec 2023 | Dec 2023 |
| US 7,641,124 | this patent Jan 2022 | Jan 2022 |
8 of 24 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 |
|---|---|---|---|
| May 22, 2008 Reel 20984, frame 153 | Brown, Kerry D.; Pariseau, David K.; Li, Weidong; Thompson, Joyce; Williams, Edgar M. | Qsecure, Inc. | Assignment of Assignor's Interest |
| Apr 4, 2014 Reel 32609, frame 559 | Qsecure, Inc. | Coin, Inc. | Assignment of Assignor's Interest |
| May 18, 2016 Reel 38636, frame 267 | Coin, Inc. | Fitbit, 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 652 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
508
later US patents cite this one
That is top 1% of utility patents granted in 2010 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.