Also listed on Vertique, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Mar 25, 2029 · High confidence
20-year base term ends Dec 5, 2028
Held by System Logistics Corporation
Filed Dec 5, 2008 as application 12/315,837 · Granted Jun 21, 2011
Base term plus 110 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Dec 5, 2008
Dec 5, 2008
Term ends
Mar 25, 2029
Mar 25, 2029
Granted
Jun 21, 2011
Jun 21, 2011
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
110
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.
13
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 110 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 Dec 5, 2008, when this application, 12/315,837, was filed | Dec 5, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +110 days, USPTO patent term adjustment record | Mar 25, 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 | Mar 25, 2029 | High confidence |
This family
| Application 60/354,881 | Provisional application no patent term | no patent term |
| US 6,729,836 | Term ended Mar 2022 | Mar 2022 |
| US 6,871,116 | Term ended Mar 2023 | Mar 2023 |
| Application 10/272,720 | Abandoned not computed | not computed |
| US 7,200,465 | Lapsed on the fee record Apr 2019 | Apr 2019 |
| US 7,007,791 | Lapsed on the fee record Mar 2018 | Mar 2018 |
| US 7,401,709 | Lapsed on the fee record Jul 2020 | Jul 2020 |
| US 7,184,855 | Lapsed on the fee record Feb 2019 | Feb 2019 |
8 of 13 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 |
|---|---|---|---|
| Jan 28, 2009 Reel 22167, frame 689 | Stingel, Frederick J., III; Devlin, Ernest E., JR.; French, John R. | Vertique, Inc. | Assignment of Assignor's Interest |
| Feb 5, 2010 Reel 23905, frame 207 | Vertique, Inc. | Jayson Concepts | Assignment of Assignor's Interest |
| Apr 29, 2010 Reel 24305, frame 226 | Jayson Concepts | Vertique, Inc. | Assignment of Assignor's Interest |
| Nov 18, 2011 Reel 27264, frame 407 | Vertique, Inc. | Illinois Tool Works Inc. | Assignment of Assignor's Interest |
| Dec 7, 2011 Reel 27341, frame 49 | Illinois Tool Works Inc. | Vertique, Inc. | Assignment of Assignor's Interest |
| Jun 13, 2014 Reel 33095, frame 854 | Vertique, Inc. | Illinois Tool Works Inc. | Assignment of Assignor's Interest |
| Dec 14, 2016 Reel 40730, frame 177 | Illinois Tool Works Inc. | System Logistics Corporation | 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.
What's changing
Mar 2029
Term ends Mar 25, 2029. No further fees fall due before then
Note
The 110 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
11
later US patents cite this one
That is above the median of utility patents granted in 2011 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.