Also listed on TNT Crane & Rigging, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Sep 7, 2021 (Wells Fargo Bank, National Association).
Term ends Aug 9, 2033 · High confidence
20-year base term ends May 13, 2033
Filed May 13, 2013 as application 13/892,985 · Granted Dec 29, 2015
Base term plus 88 days of patent term adjustment (USPTO delay)
Today
2013
2033
Clock starts
May 13, 2013
May 13, 2013
Term ends
Aug 9, 2033
Aug 9, 2033
Granted
Dec 29, 2015
Dec 29, 2015
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
88
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.
This patent's term runs 88 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 May 13, 2013, when this application, 13/892,985, was filed | May 13, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +88 days, USPTO patent term adjustment record | Aug 9, 2033 | 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 | Aug 9, 2033 | High confidence |
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 |
|---|---|---|---|
| May 13, 2013 Reel 30405, frame 224 | Appling, Mike; Dobbs, Randy | TNT Crane & Rigging, Inc. | Assignment of Assignor's Interest |
| Jan 13, 2014 Reel 31997, frame 102 | TNT Crane & Rigging, Inc. | Goldman Sachs Bank USA | First Lien Patent Short Form Security Agreement |
| Jan 13, 2014 Reel 31997, frame 131 | TNT Crane & Rigging, Inc. | Goldman Sachs Bank USA | Second Lien Patent Short Form Security Agreement |
| Jun 4, 2020 Reel 52838, frame 638 | Goldman Sachs Bank USA | Wilmington Savings Fund Society, FSB | Assignment and Assumption of Confirmatory Grant of Security Interest in United States Patents Recorded at Reel 031997/FRAME 0102 |
| Jun 26, 2020 Reel 53057, frame 381 | Goldman Sachs Bank USA | Cortland Capital Market Services, LLC | Assignment of Assignor's Interest |
| Oct 16, 2020 Reel 54333, frame 88 | TNT Crane & Rigging, Inc. | Wells Fargo Bank, N.a. | Priority First Lien Credit Agreement Patent Short Form Security Agreement |
| Oct 16, 2020 Reel 54333, frame 156 | TNT Crane & Rigging, Inc. | Wells Fargo Bank, N.a. | Takeback First Lien Credit Agreement Patent Short Form Security Agreement |
| Nov 2, 2020 Reel 54760, frame 614 | Wilmington Savings Fund Society, FSB | TNT Crane & Rigging, Inc. | Release of First Lien Patent Short Form Security Agreement |
| Dec 3, 2020 Reel 54527, frame 110 | Cortland Capital Market Services, LLC | TNT Crane & Rigging, Inc. | Release of Security Interest |
| Sep 3, 2021 Reel 57405, frame 744 | TNT Crane & Rigging, Inc. | Wells Fargo Bank, N.A., as Collateral Agent | Patent Short Form Security Agreement |
| Sep 4, 2021 Reel 57419, frame 238 | Wells Fargo Bank, N.A., as Administrative Agent | TNT Crane & Rigging, Inc. | Release of Security Interest in Patents - (Reel/Frame 054333/0156) |
| Sep 7, 2021 Reel 57400, frame 359 | Wells Fargo Bank, N.A., as Administrative Agent | TNT Crane & Rigging, Inc. | Release of Security Interest |
| Sep 7, 2021 Reel 57507, frame 921 | TNT Crane & Rigging, Inc. | Wells Fargo Bank, National Association, as Agent | Security Agreement |
| Mar 6, 2026 Reel 74003, frame 528 | TNT Crane & Rigging, Inc. | Wells Fargo Bank, N.A., as Collateral Agent | Security Interest |
| Mar 9, 2026 Reel 74010, frame 820 | TNT Crane & Rigging, Inc. | Wells Fargo Bank, National Association | 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.
What's changing
Aug 2033
Term ends Aug 9, 2033. Maintenance fees still fall due before then
Note
The 88 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
6
later US patents cite this one
That is below the median of utility patents granted in 2015 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.