Also listed on Lstar Technologies LLC, which filed it. The recorded assignments below show how it moved.
Term ends Apr 28, 2030
Statutory term ends Apr 29, 2029
Base term plus 364 days of PTA
Today
20y-from-earliest-nonprovisional
Expires Apr 2030
2009
2030
Clock starts
Apr 29, 2009
Apr 29, 2009
Granted
Jan 17, 2012
Jan 17, 2012
Term ends
Apr 28, 2030
Apr 28, 2030
base term
patent term adjustment
fee events
Computed Sep 1, 2026 · countdowns run from that date · how we know
364
Days of PTA
2
Applications in this family
This patent's term runs 364 days past the statutory base term on prosecution delay. All three maintenance fees are paid, so nothing but the term itself will end it. Confidence: High. 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 Apr 29, 2009 | Apr 29, 2029 | High |
| Continuity chain | Every parent in the chain resolved | no change | High |
| Patent term adjustment | +364 days, USPTO PTA record | Apr 28, 2030 | High |
| Terminal disclaimer cap | None on record | no cap applied | High |
| 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 | Apr 28, 2030 | High |
The computation, verbatim
base=20y-from-earliest-nonprovisional: 2009-04-29+20y | =2029-04-29 | PTA+364d=2030-04-28 | PTE:none | TD:none | paid 4yr@2015-06-24,8yr@2019-07-04,12yr@2023-07-05 | status=in-force@2030-04-28
This family
| US 8,099,057 | this patent | Apr 2030 |
| Application PCT/US2010/032718 | pending | not computed |
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 28, 2010 reel/frame not recorded | Reudink, Douglas | Lstar Technologies, LLC | Assignment of Assignor's Interest |
| Dec 8, 2011 reel/frame not recorded | Lstar Technologies LLC | Empire Technology Development LLC | Assignment of Assignor's Interest |
| Dec 8, 2011 reel/frame not recorded | Reudink, Douglas | Lightspeed Enterprises, Inc. | Assignment of Assignor's Interest |
| Dec 8, 2011 reel/frame not recorded | Lightspeed Enterprises, Inc. | Empire Technology Development LLC | Assignment of Assignor's Interest |
| Jan 29, 2019 Reel 48373, frame 217 | Empire Technology Development LLC | Crestline Direct Finance, L.P. | Security Interest |
| Aug 30, 2022 reel/frame not recorded | Crestline Direct Finance, L.P. | Empire Technology Development LLC | Release of Security Interest |
| Sep 22, 2025 Reel 72936, frame 464 | Crestline Direct Finance, L.P., as Collateral Agent | Empire Technology Development LLC | Release of Security Interest in Patents, Recorded on January 29, 2019 at Reel 048373 Frame 0217 |
| Jun 22, 2026 Reel 75799, frame 53 | Crestline Direct Finance, L.P., as Collateral Agent | Empire Technology Development LLC | Release of Security Interest in Patents, Recorded on January 29, 2019, at Reel/Frame 048373/0217 |
Free plan: 3 watched companies. Pro: unlimited.
alerts on grants, lapses, transfers
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What's changing
Apr 2030
Term ends. No further fees fall due before then
Note
The 364 days of PTA are read from the USPTO record, not recalculated by us
Citations
1
later US patent cite this one
That is below the median of utility patents granted in 2012 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.