Term ends May 13, 2031 · High confidence
20-year base term ends Feb 26, 2029
Held by Vanrx Pharmasystems Inc.
Filed Jan 17, 2013 as application 13/744,408 · Granted Oct 17, 2017
Base term plus 806 days of patent term adjustment (USPTO delay)
Today
2009
2031
Clock starts
Feb 26, 2009
Feb 26, 2009
Term ends
May 13, 2031
May 13, 2031
Granted
Oct 17, 2017
Oct 17, 2017
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
806
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.
9
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 806 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 Feb 26, 2009, when application 12/393,183, the earliest non-provisional in its chain, was filed (this one was filed Jan 17, 2013) | Feb 26, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +806 days, USPTO patent term adjustment record | May 13, 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 13, 2031 | High confidence |
This family
| Application 12/393,183 | Abandoned not computed | not computed |
| US 8,397,982 | Lapsed on the fee record Mar 2021 | Mar 2021 |
| US 9,789,986 | this patent May 2031 | May 2031 |
| US 8,651,368 | Lapsed on the fee record Feb 2022 | Feb 2022 |
| US 10,261,940 | In force Feb 2029 | Feb 2029 |
| US 10,901,941 | In force Apr 2029 | Apr 2029 |
| Application 17/005,606 | Abandoned not computed | not computed |
| US 11,630,801 | In force Feb 2029 | Feb 2029 |
8 of 9 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 5, 2017 Reel 42257, frame 982 | Procyshyn, Christopher A.; Gold, Ross M. | Vanrx Pharmaceuticals, Inc. | Assignment of Assignor's Interest |
| May 5, 2017 Reel 42258, frame 163 | Vanrx Pharmaceuticals, Inc. | Vanrx Pharmasystems Inc. | Change of Name |
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
May 2031
Term ends May 13, 2031. Maintenance fees still fall due before then
Note
The 806 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
31
later US patents cite this one
That is top 25% of utility patents granted in 2017 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.