Term ends Aug 27, 2027 · High confidence
20-year base term ends Aug 27, 2027
Held by LMK Technologies, LLC
Filed Jan 13, 2023 as application 18/154,650 · Granted Mar 18, 2025
Base term, 20 years from filing
Today
2007
2027
Clock starts
Aug 27, 2007
Aug 27, 2007
Term ends
Aug 27, 2027
Aug 27, 2027
Granted
Mar 18, 2025
Mar 18, 2025
base term
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,975,726, US 8,667,991, US 9,366,375, to Aug 27, 2027. The term already ends on or before that date, so the cap shortened nothing.
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.
11
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. No maintenance fee can end this term early. 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 Aug 27, 2007, when application 11/845,134, the earliest non-provisional in its chain, was filed (this one was filed Jan 13, 2023) | Aug 27, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,975,726, US 8,667,991, US 9,366,375) | resolves to Aug 27, 2027, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No maintenance fee can end the term early | In force | High confidence |
| Computed term end | The steps above, in order | Aug 27, 2027 | High confidence |
This family
| US 7,975,726 | In force Nov 2029 | Nov 2029 |
| Application PCT/US2008/074001 | PCT application no patent term | no patent term |
| US 8,667,991 | In force Jan 2028 | Jan 2028 |
| US 8,678,037 | In force Oct 2027 | Oct 2027 |
| US 8,667,992 | Lapsed on the fee record Mar 2018 | Mar 2018 |
| US 9,366,375 | In force Aug 2027 | Aug 2027 |
| US 8,689,835 | In force Aug 2027 | Aug 2027 |
| US 10,458,591 | In force Aug 2027 | Aug 2027 |
8 of 11 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 |
|---|---|---|---|
| Apr 23, 2026 Reel 75463, frame 713 | Inframark, LLC; Ina Acquisition Corp.; Underground Solutions, Inc.; LMK Technologies, LLC; BLD Services, LLC; Perma-Liner Industries, LLC | JPMorgan Chase Bank, N.A., as Administrative Agent | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Aug 2027
Term ends Aug 27, 2027. No further fees fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,975,726, US 8,667,991, US 9,366,375, 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 2025 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.