Term ends Jun 30, 2031 · High confidence
20-year base term ends Mar 25, 2031
Held by Sonoco Development, Inc.
Filed Dec 18, 2020 as application 17/126,243 · Granted Sep 19, 2023
Base term plus 238 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2011
2031
Clock starts
Mar 25, 2011
Mar 25, 2011
Term ends
Jun 30, 2031
Jun 30, 2031
Granted
Sep 19, 2023
Sep 19, 2023
base term
patent term adjustment
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
238
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 11,072,452.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
8
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 238 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 1 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 Mar 25, 2011, when application 13/071,721, the earliest non-provisional in its chain, was filed (this one was filed Dec 18, 2020) | Mar 25, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +238 days, USPTO patent term adjustment record | Nov 18, 2031 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,072,452) | capped to Jun 30, 2031 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 30, 2031 | High confidence |
This family
| US 9,850,021 | In force Apr 2034 | Apr 2034 |
| Application PCT/US2012/030097 | PCT application no patent term | no patent term |
| US 9,944,426 | In force Mar 2031 | Mar 2031 |
| US 10,329,044 | In force Mar 2031 | Mar 2031 |
| US 11,072,452 | In force Jun 2031 | Jun 2031 |
| US 11,760,528 | this patent Jun 2031 | Jun 2031 |
| US 12,227,335 | In force Mar 2031 | Mar 2031 |
| Application 19/024,905 | Pending 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 |
|---|---|---|---|
| Apr 18, 2022 Reel 59627, frame 372 | Clougherty, Kenan J. | Sonoco Development, Inc. | 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
Jun 2031
Term ends Jun 30, 2031. Maintenance fees still fall due before then
Note
The 238 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 11,072,452.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2023 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.