Collateral for a security interest recorded Apr 6, 2026 (PNC Bank, National Association).
Term ends Feb 6, 2029 · High confidence
20-year base term ends Oct 20, 2028
Held by LSI Industries, Inc.
Filed Oct 8, 2010 as application 12/900,811 · Granted Mar 5, 2013
Base term plus 109 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Oct 20, 2008
Oct 20, 2008
Term ends
Feb 6, 2029
Feb 6, 2029
Granted
Mar 5, 2013
Mar 5, 2013
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
109
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
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 109 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Oct 20, 2008, when application 12/254,107, the earliest non-provisional in its chain, was filed (this one was filed Oct 8, 2010) | Oct 20, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +109 days, USPTO patent term adjustment record | Feb 6, 2029 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 6, 2029 | High confidence |
This family
| Application PCT/US2008/080469 | PCT application no patent term | no patent term |
| US 7,972,035 | In force Jul 2029 | Jul 2029 |
| US 8,251,552 | In force Aug 2029 | Aug 2029 |
| US 8,388,166 | this patent Feb 2029 | Feb 2029 |
| Application PCT/US2011/027647 | PCT application no patent term | no patent term |
| Application PCT/US2011/052299 | PCT application no patent term | no patent term |
| US 8,608,335 | In force Oct 2028 | Oct 2028 |
| Application 14/059,595 | Abandoned 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 |
|---|---|---|---|
| Dec 14, 2010 Reel 25492, frame 151 | Rooms, Rob Allen; Boyer, John D. | LSI Industries, Inc. | Assignment of Assignor's Interest |
| Apr 6, 2026 Reel 75366, frame 338 | LSI Industries Inc. | PNC Bank, National Association, 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Feb 2029
Term ends Feb 6, 2029. No further fees fall due before then
Note
The 109 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
20
later US patents cite this one
That is above the median of utility patents granted in 2013 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.