Term ends May 27, 2031 · High confidence
20-year base term ends Apr 13, 2029
No current holder resolved from the recorded chain.
Filed Sep 26, 2011 as application 13/245,339 · Granted Nov 15, 2016
Base term plus 774 days of patent term adjustment (USPTO delay)
Today
2009
2031
Clock starts
Apr 13, 2009
Apr 13, 2009
Term ends
May 27, 2031
May 27, 2031
Granted
Nov 15, 2016
Nov 15, 2016
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
774
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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 774 days past its 20-year base term on prosecution delay. 2 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 Apr 13, 2009, when applications 12/422,792, 12/422,801, 12/422,811 and 12/422,821, the earliest non-provisional applications in its chain, were filed (this one was filed Sep 26, 2011) | Apr 13, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +774 days, USPTO patent term adjustment record | May 27, 2031 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 27, 2031 | High confidence |
This family
| US 8,033,598 | In force Sep 2029 | Sep 2029 |
| US 8,033,612 | In force Sep 2029 | Sep 2029 |
| US 8,029,059 | In force Sep 2029 | Sep 2029 |
| US 8,038,221 | In force Jul 2029 | Jul 2029 |
| US 8,317,269 | Lapsed on the fee record Nov 2024 | Nov 2024 |
| US 8,322,787 | Lapsed on the fee record Dec 2024 | Dec 2024 |
| US 8,454,093 | Lapsed on the fee record Jun 2025 | Jun 2025 |
| US 9,492,014 | this patent May 2031 | May 2031 |
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, 2011 Reel 27380, frame 83 | Mity-Lite, Inc. | Cit Lending Services Corporation, as Administrative and Collateral Agent | Security Agreement Patents |
| Feb 6, 2012 Reel 27659, frame 247 | Cit Lending Services Corporation | Mity-Lite, Inc. | Release of Security Interest |
| Feb 8, 2012 Reel 27675, frame 371 | Mity-Lite, Inc. | Fifth Third Bank | Security Agreement |
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.
What's changing
May 2031
Term ends May 27, 2031. Maintenance fees still fall due before then
Note
The 774 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
5
later US patents cite this one
That is above the median of utility patents granted in 2016 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.