Also listed on Porter Corp., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Feb 10, 2041 · High confidence
20-year base term ends Dec 20, 2037
Held by Porter's Group, LLC
Filed Jul 21, 2020 as application 16/934,643 · Granted Nov 26, 2024
Base term plus 1148 days of patent term adjustment (USPTO delay)
Today
2017
2041
Clock starts
Dec 20, 2017
Dec 20, 2017
Term ends
Feb 10, 2041
Feb 10, 2041
Granted
Nov 26, 2024
Nov 26, 2024
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
1,148
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 12,118,860, to Feb 10, 2041. The term already ends on or before that date, so the cap shortened nothing.
0 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.
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 1148 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 0 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 Dec 20, 2017, when application 15/848,586, the earliest non-provisional in its chain, was filed (this one was filed Jul 21, 2020) | Dec 20, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1148 days, USPTO patent term adjustment record | Feb 10, 2041 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 12,118,860) | resolves to Feb 10, 2041, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 10, 2041 | High confidence |
This family
| US 10,636,258 | In force May 2038 | May 2038 |
| US 12,118,860 | In force Mar 2041 | Mar 2041 |
| US 12,154,415 | this patent Feb 2041 | Feb 2041 |
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 7, 2026 Reel 74297, frame 708 | Maysteel Industries, LLC | Fortress Credit Corp. | Security 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
Feb 2041
Term ends Feb 10, 2041. Maintenance fees still fall due before then
Note
The 1148 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 12,118,860, ends no earlier than this term, so it caps nothing.
Citations
0
later US patents cite this one
Fewer than half of the utility patents granted in 2024 in our data have been cited yet, so we show the count and do not rank on it.
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.