Lapsed Aug 11, 2023 on the fee record · High confidence
20-year base term ends Jun 12, 2029
Second maintenance fee unpaid; grace period ended.
Filed Jun 12, 2009 as application 12/483,509 · Granted Aug 11, 2015
Base term, 20 years from filing, plus 1498 days of patent term adjustment (USPTO delay)
Today
Lapsed Aug 11, 2023
2009
2033
Clock starts
Jun 12, 2009
Jun 12, 2009
No longer in force
Aug 11, 2023
Aug 11, 2023
Granted
Aug 11, 2015
Aug 11, 2015
Term would have run to
Jul 19, 2033
Jul 19, 2033
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
1,498
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
Its term would have run to Jul 19, 2033: its 20-year base term plus 1498 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 12, 2009, when this application, 12/483,509, was filed | Jun 12, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1498 days, USPTO patent term adjustment record | Jul 19, 2033 | 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 | 1 of 3 maintenance fees paid | lapsed Aug 11, 2023 | High confidence |
| Computed term end | The steps above, in order | Aug 11, 2023 | High confidence |
This family
| US 8,062,384 | Lapsed on the fee record Nov 2019 | Nov 2019 |
| US 9,105,778 | this patent Aug 2023 | Aug 2023 |
| Application PCT/US2010/037486 | PCT application no patent term | no patent term |
| US 8,888,869 | In force Jun 2029 | Jun 2029 |
| Application 13/233,912 | Abandoned not computed | not computed |
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 |
|---|---|---|---|
| Sep 1, 2009 Reel 23177, frame 229 | Krein, Bruce; Birtwhistle, Darin; Thompson, Jeff | Miasole | Assignment of Assignor's Interest |
| Aug 28, 2012 Reel 28863, frame 887 | Miasole | Pinnacle Ventures, L.l.c. | Security Agreement |
| Jan 7, 2013 Reel 29579, frame 494 | Pinnacle Ventures, L.l.c. | Miasole | Release of Security Interest |
| Jan 27, 2014 Reel 32127, frame 428 | Miasolé | Hanergy Holding Group Ltd. | Confirmatory Assignment of Patent Rights |
| Jan 30, 2015 Reel 34857, frame 380 | Hanergy Holding Group Ltd. | Apollo Precision (Kunming) Yuanhong Limited | Assignment of Assignor's Interest |
| Mar 4, 2016 Reel 37896, frame 10 | Apollo Precision (Kunming) Yuanhong Limited | Beijing Apollo Ding Rong Solar Technology Co., Ltd. | 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.
What's changing
Note
The 1498 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
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.