Collateral for a security interest recorded Oct 15, 2020 (Intellectual Ventures Assets 91 LLC).
Lapsed Jan 3, 2024 on the fee record · High confidence
20-year base term ends Apr 10, 2027
Third maintenance fee unpaid; grace period ended.
Held by Mec Management, LLC
Filed May 29, 2009 as application 12/455,161 · Granted Jan 3, 2012
Base term, 20 years from filing, plus 245 days of patent term adjustment (USPTO delay)
Today
Lapsed Jan 3, 2024
2007
2027
Clock starts
Apr 10, 2007
Apr 10, 2007
No longer in force
Jan 3, 2024
Jan 3, 2024
Granted
Jan 3, 2012
Jan 3, 2012
Term would have run to
Dec 11, 2027
Dec 11, 2027
base term
patent term adjustment
after the term ends
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
245
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.
3
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Dec 11, 2027: its 20-year base term plus 245 days of term adjustment for prosecution delay. 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 10, 2007, when application 11/784,879, the earliest non-provisional in its chain, was filed (this one was filed May 29, 2009) | Apr 10, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +245 days, USPTO patent term adjustment record | Dec 11, 2027 | 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 | lapsed Jan 3, 2024 | High confidence |
| Computed term end | The steps above, in order | Jan 3, 2024 | High confidence |
This family
| US 7,633,164 | In force no later than Jul 2027 | no later than Jul 2027 |
| US 8,089,158 | this patent Jan 2024 | Jan 2024 |
| US 8,084,860 | Lapsed on the fee record Dec 2023 | Dec 2023 |
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 |
|---|---|---|---|
| Mar 21, 2011 Reel 26008, frame 715 | Tohoku University | Advanced Interconnect Materials, LLC | Assignment of Assignor's Interest |
| Mar 20, 2012 Reel 27895, frame 116 | Koike, Junichi | Tohoku University | Assignment of Assignor's Interest |
| Mar 20, 2012 Reel 27895, frame 244 | Kawakami, Hideaki | Advanced Interconnect Materials, LLC | Assignment of Assignor's Interest |
| Apr 20, 2012 Reel 28083, frame 909 | Advanced Interconnect Materials, LLC | Altiam Services Ltd. LLC | Assignment of Assignor's Interest |
| Oct 22, 2015 Reel 36855, frame 346 | Altiam Services Ltd. LLC | Xenogenic Development Limited Liability Company | Merger |
| Aug 27, 2018 Reel 46717, frame 310 | Xenogenic Development Limited Liability Company | Intellectual Ventures Assets 84 LLC | Assignment of Assignor's Interest |
| Aug 23, 2019 Reel 50144, frame 82 | Bylas District Economic Enterprise LLC | Mec Management, LLC | Assignment of Assignor's Interest |
| Oct 15, 2020 Reel 54071, frame 566 | Bylas District Economic Enterprise, LLC | Intellectual Ventures Assets 91 LLC; Intellectual Ventures Assets 84 LLC | Security Interest |
| Oct 15, 2020 reel/frame not recorded | Bylas District Economic Enterprise, LLC | Intellectual Ventures Assets 91 LLC | Security Interest |
| Oct 15, 2020 reel/frame not recorded | Bylas District Economic Enterprise, LLC | Intellectual Ventures Assets 84 LLC | 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
Note
The 245 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 2012 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.