Also listed on Trex Enterprises Corp., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jan 23, 2028 · High confidence
20-year base term ends Mar 26, 2027
Filed Mar 26, 2007 as application 11/728,335 · Granted Aug 17, 2010
Base term plus 303 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Mar 26, 2007
Mar 26, 2007
Term ends
Jan 23, 2028
Jan 23, 2028
Granted
Aug 17, 2010
Aug 17, 2010
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
303
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.
This patent's term runs 303 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 Mar 26, 2007, when this application, 11/728,335, was filed | Mar 26, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +303 days, USPTO patent term adjustment record | Jan 23, 2028 | 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 (reinstated) | High confidence |
| Computed term end | The steps above, in order | Jan 23, 2028 | High confidence |
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, 2007 Reel 19593, frame 599 | Korevaar, Eric; Taketomi, Yoshi | Trex Enterprises Corp. | Assignment of Assignor's Interest |
| Sep 25, 2013 Reel 31280, frame 516 | Trex Enterprises Corporation | Crossfiber Inc. | Assignment of Assignor's Interest |
| Apr 15, 2016 Reel 38295, frame 481 | Crossfiber Inc. | BBXF LLC; BBXF Global LLC | Security Interest |
| Apr 15, 2016 reel/frame not recorded | Crossfiber Inc. | BBXF LLC | Security Interest |
| Apr 15, 2016 reel/frame not recorded | Crossfiber Inc. | BBXF Global LLC | Security Interest |
| Jul 6, 2016 Reel 39266, frame 449 | BBXF LLC; BBXF Global LLC | BBXF LLC; BBXF Global LLC | Bill of Sale |
| Jul 6, 2016 reel/frame not recorded | BBXF Global LLC; BBXF LLC | BBXF LLC | Bill of Sale |
| Jul 6, 2016 reel/frame not recorded | BBXF Global LLC; BBXF LLC | BBXF Global LLC | Bill of Sale |
| Dec 29, 2016 Reel 40805, frame 594 | BBXF LLC; BBXF Global LLC | Back Bay Data Solutions, Inc. | Assignment of Assignor's Interest |
| Jan 7, 2019 Reel 47914, frame 407 | Back Bay Data Solutions, Inc. | Iande Group, LLC | Assignment of Assignor's Interest |
| Dec 29, 2025 Reel 73324, frame 673 | Iande Group, LLC | Eoptolink Technology Singapore Pte. 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
Jan 2028
Term ends Jan 23, 2028. No further fees fall due before then
Note
The 303 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 below the median 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.