Also listed on May Patents Ltd., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded May 11, 2020 (Silicon Valley Bank).
Term ends Nov 15, 2031 · High confidence
20-year base term ends Sep 29, 2029
Held by Sphero, Inc.
Filed Sep 29, 2009 as application 12/568,834 · Granted Dec 10, 2013
Base term plus 777 days of patent term adjustment (USPTO delay)
Today
2009
2031
Clock starts
Sep 29, 2009
Sep 29, 2009
Term ends
Nov 15, 2031
Nov 15, 2031
Granted
Dec 10, 2013
Dec 10, 2013
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
777
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
5
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 777 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Sep 29, 2009, when this application, 12/568,834, was filed | Sep 29, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +777 days, USPTO patent term adjustment record | Nov 15, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 15, 2031 | High confidence |
This family
| US 8,602,833 | this patent Nov 2031 | Nov 2031 |
| US 8,951,088 | In force Sep 2029 | Sep 2029 |
| US 10,155,153 | In force Sep 2029 | Sep 2029 |
| US 10,987,571 | In force Sep 2029 | Sep 2029 |
| US 11,896,915 | In force Sep 2029 | Sep 2029 |
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 |
|---|---|---|---|
| Jul 13, 2010 Reel 24671, frame 481 | Binder, Yehuda | May Patents Ltd. | Assignment of Assignor's Interest |
| Nov 10, 2015 Reel 36997, frame 889 | May Patents, Ltd. | Littlebits Electronics, Inc. | Assignment of Assignor's Interest |
| Aug 7, 2019 Reel 49987, frame 514 | Littlebits Electronics Inc. | Silicon Valley Bank | Intellectual Property Security Agreement |
| Aug 23, 2019 Reel 50153, frame 227 | Silicon Valley Bank | Littlebits Electronics Inc. | Release of Security Interest |
| Oct 10, 2019 Reel 50678, frame 235 | Littlebits Electronics Inc. | Sphero, Inc. | Assignment of Assignor's Interest |
| May 11, 2020 Reel 52623, frame 705 | Sphero, Inc. | Silicon Valley Bank | Security 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.
What's changing
Nov 2031
Term ends Nov 15, 2031. No further fees fall due before then
Note
The 777 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
104
later US patents cite this one
That is top 5% of utility patents granted in 2013 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.