Also listed on Amp LLC, which filed it. The recorded assignments below show how it moved.
Term ends Mar 1, 2027 · Medium confidence
Statutory term ends Oct 17, 2025
Base term plus 500 days of PTA
Today
20y-from-earliest-nonprovisional
Expires in 5 months
2005
2027
Clock starts
Oct 17, 2005
Oct 17, 2005
Granted
May 18, 2010
May 18, 2010
Term ends
Mar 1, 2027
Mar 1, 2027
base term
patent term adjustment
fee events
Computed Sep 8, 2026 · countdowns run from that date · how we know
500
Days of PTA
1
Applications in this family
This patent's term runs 500 days past the statutory base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. All three maintenance fees are paid, so nothing but the term itself will end it. Confidence: Medium. from the record
How this date was computed
Every step shows its rule, its 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, 20y-from-earliest-nonprovisional | Clock starts Oct 17, 2005 | Oct 17, 2025 | High |
| Continuity chain | Every parent in the chain resolved | no change | High |
| Patent term adjustment | +500 days, USPTO PTA record | Mar 1, 2027 | High |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium |
| Patent term extension | None on file | no change | High |
| Fee events | 3 of 3 maintenance fees paid | in-force | High |
| Computed term end | The steps above, in order | Mar 1, 2027 | Medium |
The computation, verbatim
base=20y-from-earliest-nonprovisional: 2005-10-17+20y | =2025-10-17 | PTA+500d=2027-03-01 | PTE:none | TD:approved | paid 4yr@2013-10-11,8yr@2017-10-16,12yr@2021-05-18 | status=in-force@2027-03-01
terminal disclaimer approved - true expiration may be capped to family sibling
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 6, 2006 reel/frame not recorded | Seaman, Wayne; Francois, Anton; Milne, Kelvin; Van Leeve, Dion; Van Niekerk, Hennie; Eloff, Johann | Workhorse Custom Chassis, LLC | Assignment of Assignor's Interest |
| Apr 6, 2006 Reel 17429, frame 378 | Van Leeve, Dion; Van Niekerk, Hennie; Seaman, Wayne; Milne, Kelvin; Eloff, Johann; Francois, Anton | Workhorse Custom Chassis, LLC | Assignment of Assignor's Interest |
| Sep 3, 2015 Reel 36530, frame 1 | Workhorse Custom Chassis, LLC | Amp Trucks Inc. | Assignment of Assignor's Interest |
| Jul 10, 2018 reel/frame not recorded | Surefly, Inc.; Workhorse Group Inc.; Workhorse Motor Works Inc. (F/K/A/ Amp Trucks Inc.) | Arosa Opportunistic Fund LP | Intellectual Property Security Agreement |
| Jul 10, 2018 Reel 46522, frame 162 | Workhorse Motor Works Inc. (F/K/A/ Amp Trucks Inc.); Workhorse Group Inc.; Surefly, Inc. | Arosa Opportunistic Fund LP | Intellectual Property Security Agreement |
| Dec 31, 2018 reel/frame not recorded | Surefly, Inc.; Workhorse Group Inc.; Workhorse Motor Works Inc; Workhorse Technologies Inc. | Wilmington Trust, National Association | Security Interest |
| Dec 31, 2018 Reel 47876, frame 342 | Workhorse Group Inc.; Workhorse Technologies Inc.; Workhorse Motor Works Inc; Surefly, Inc. | Wilmington Trust, National Association | Security Interest |
| Jan 3, 2019 Reel 47890, frame 124 | Arosa Opportunistic Fund LP | Workhorse Group Inc. | Security Interest |
| Feb 5, 2019 Reel 48262, frame 90 | Amp Trucks Inc. | Workhorse Motor Works Inc. | Change of Name |
| Dec 12, 2019 Reel 51256, frame 759 | Workhorse Motor Works Inc | Workhorse Group Inc. | Assignment of Assignor's Interest |
| Dec 16, 2019 Reel 51317, frame 748 | Workhorse Group Inc. | HT Investments Ma LLC, as Collateral Agent | Intellectual Property Security Agreement |
| Dec 16, 2019 reel/frame not recorded | Wilmington Trust, National Association | Workhorse Group Inc. | Termination and Release of Security Interest in Intellectual Property at Reel/Frame No. 47876/0342 |
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What's changing
Mar 2027
Term ends. No further fees fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 500 days of PTA are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Mar 1, 2027. We will not guess the cap.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2010 in our data, the only group it is compared against.
How we rank
Every date shows its work: base rule, PTA, PTE, disclaimer caps, fee overlay, 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.