Term ends no later than Jan 10, 2032 · Medium confidence
20-year base term ends Jul 1, 2031
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Held by Zylox Tonbridge Medical Limited
Filed Jul 2, 2019 as application 16/460,903 · Granted Jul 12, 2022
Base term plus 193 days of patent term adjustment (USPTO delay)
Today
2011
2032
Clock starts
Jul 1, 2011
Jul 1, 2011
Ends no later than
Jan 10, 2032
Jan 10, 2032
Granted
Jul 12, 2022
Jul 12, 2022
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
193
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
1 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.
17
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 193 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 1 of 2 maintenance fees is paid so far. 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 Jul 1, 2011, when application 13/175,232, the earliest non-provisional in its chain, was filed (this one was filed Jul 2, 2019) | Jul 1, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +193 days, USPTO patent term adjustment record | Jan 10, 2032 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than Jan 10, 2032 | Medium confidence |
This family
| US 9,345,510 | In force Jul 2031 | Jul 2031 |
| US 10,363,062 | In force Jun 2033 | Jun 2033 |
| Application PCT/US2013/032196 | PCT application no patent term | no patent term |
| Application PCT/US2013/032494 | PCT application no patent term | no patent term |
| Application PCT/US2015/014613 | PCT application no patent term | no patent term |
| US 10,335,173 | In force Dec 2034 | Dec 2034 |
| US 10,548,478 | In force Jul 2033 | Jul 2033 |
| US 9,592,075 | In force Feb 2035 | Feb 2035 |
8 of 17 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 20, 2022 Reel 60144, frame 632 | Patel, Himanshu N.; Simpson, John B.; McNall, Charles W.; Spencer, Maegan K.; Zung, Michael; Gupta, Priyanshu; Spinelli, Nicholas J.; Fabro, Myra L.; Sucgang, Eduardo; Ketai, Theodore W. | Avinger, Inc. | Assignment of Assignor's Interest |
| Apr 30, 2025 Reel 71135, frame 568 | Lumivascular, Inc. | Zylox Tonbridge Medical Limited | Security Interest |
| Oct 10, 2025 Reel 72541, frame 422 | Avinger, Inc. | Avinger (Assignment for the Benefit of Creditors), LLC | Assignment of Assignor's Interest |
| Oct 10, 2025 Reel 72835, frame 297 | Avinger (Assignment for the Benefit of Creditors), LLC | Lumivascular, Inc. | Assignment of Assignor's Interest |
| Oct 21, 2025 Reel 73068, frame 297 | Lumivascular, Inc. | Zylox Tonbridge Medical Limited | 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
Jan 2032
Term ends no later than Jan 10, 2032. Maintenance fees still fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 193 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Jan 10, 2032. We will not guess the cap.
Citations
55
later US patents cite this one
That is top 5% of utility patents granted in 2022 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.