Lapsed Oct 2, 2026 on the fee record · High confidence
20-year base term ends Jun 30, 2034
Second maintenance fee unpaid; grace period ended.
Filed Jun 30, 2014 as application 14/319,430 · Granted Oct 2, 2018
Base term, 20 years from filing, plus 817 days of patent term adjustment (USPTO delay)
Today
Lapsed Oct 2, 2026
2014
2036
Clock starts
Jun 30, 2014
Jun 30, 2014
No longer in force
Oct 2, 2026
Oct 2, 2026
Granted
Oct 2, 2018
Oct 2, 2018
Term would have run to
Sep 24, 2036
Sep 24, 2036
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
817
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
2
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 Sep 24, 2036: its 20-year base term plus 817 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 Jun 30, 2014, when this application, 14/319,430, was filed | Jun 30, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +817 days, USPTO patent term adjustment record | Sep 24, 2036 | 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 | 1 of 3 maintenance fees paid | lapsed Oct 2, 2026 | High confidence |
| Computed term end | The steps above, in order | Oct 2, 2026 | High confidence |
This family
| US 10,089,129 | this patent Oct 2026 | Oct 2026 |
| US 10,102,021 | Lapsed on the fee record Oct 2026 | Oct 2026 |
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 |
|---|---|---|---|
| Jun 30, 2014 Reel 33212, frame 579 | Banzhaf, Gerhard; Craddock, David F.; Jenks, James M.; Mencias, Angel Nunez; Miller, Justin D.; Weinmann, Eric A. | International Business Machines Corporation | 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 817 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
13
later US patents cite this one
That is top 25% of utility patents granted in 2018 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.