Term ended Sep 4, 2023 · Medium confidence
20-year base term ended Jan 22, 2023
Why Medium: A parent in the chain could not be resolved.
USPTO later recorded it as expired for non-payment on Aug 12, 2024.
Held by IPR Licensing, Inc.
Filed May 17, 2018 as application 15/982,588 · Granted Jul 7, 2020
Base term plus 225 days of patent term adjustment (USPTO delay)
Today
Term ended Sep 4, 2023
2003
2026
Clock starts
Jan 22, 2003
Jan 22, 2003
Term ended
Sep 4, 2023
Sep 4, 2023
Granted
Jul 7, 2020
Jul 7, 2020
base term
patent term adjustment
after the term ends
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
225
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
None due
Maintenance fees
This term ends before the first maintenance fee's grace period does, 4 years from grant, so no fee can end it early.
3
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 225 days past its 20-year base term on prosecution delay. 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 Jan 22, 2003, when application 10/350,309, the earliest non-provisional in its chain, was filed (this one was filed May 17, 2018); a parent in its chain could not be resolved (the next row) | Jan 22, 2023 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +225 days, USPTO patent term adjustment record | Sep 4, 2023 | 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 | No maintenance fee can end the term early | term ended | High confidence |
| USPTO status record | Recorded as expired for non-payment on Aug 12, 2024, after the term ended | no change | High confidence |
| Computed term end | The steps above, in order | Sep 4, 2023 | Medium confidence |
This family
| US 8,320,298 | In force Jul 2027 | Jul 2027 |
| US 9,999,043 | Term ended Oct 2023 | Oct 2023 |
| US 10,708,909 | this patent Sep 2023 | Sep 2023 |
The applications whose file history this site holds. The family may have others.
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
Note
The 225 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2020 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.