Lapsed May 22, 2024 on the fee record · High confidence
20-year base term ends Oct 29, 2029
Third maintenance fee unpaid; grace period ended.
Held by Intermolecular, Inc.
Filed Oct 29, 2009 as application 12/608,934 · Granted May 22, 2012
Base term, 20 years from filing, plus 411 days of patent term adjustment (USPTO delay)
Today
Lapsed May 22, 2024
2009
2030
Clock starts
Oct 29, 2009
Oct 29, 2009
No longer in force
May 22, 2024
May 22, 2024
Granted
May 22, 2012
May 22, 2012
Term would have run to
Dec 14, 2030
Dec 14, 2030
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
411
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.
23
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 14, 2030: its 20-year base term plus 411 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 Oct 29, 2009, when this application, 12/608,934, was filed | Oct 29, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +411 days, USPTO patent term adjustment record | Dec 14, 2030 | 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 May 22, 2024 | High confidence |
| Computed term end | The steps above, in order | May 22, 2024 | High confidence |
This family
| US 8,144,498 | In force Jan 2031 | Jan 2031 |
| Application PCT/US2008/062532 | PCT application no patent term | no patent term |
| US 8,143,092 | Lapsed on the fee record Mar 2024 | Mar 2024 |
| US 7,960,216 | In force May 2029 | May 2029 |
| US 8,183,553 | this patent May 2024 | May 2024 |
| US 8,975,613 | Lapsed on the fee record Mar 2023 | Mar 2023 |
| US 8,343,813 | Lapsed on the fee record Jan 2025 | Jan 2025 |
| Application PCT/US2010/030619 | PCT application no patent term | no patent term |
8 of 23 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 |
|---|---|---|---|
| May 25, 2011 Reel 26338, frame 602 | Phatak, Prashant; Chiang, Tony; Miller, Michael; Wu, Wen | Intermolecular, Inc. | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 411 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
127
later US patents cite this one
That is top 5% 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.