Lapsed Oct 21, 2026 on the fee record · Medium confidence
20-year base term ends Nov 21, 2031
Why Medium: The fee record shows no payment for this window, and USPTO's status still reads "Patented Case".
Third maintenance fee unpaid; grace period ended. The USPTO has not yet posted the lapse.
Held by Ascenium Inc.
Filed Mar 23, 2012 as application 13/429,198 · Granted Oct 21, 2014
Base term, 20 years from filing, plus 62 days of patent term adjustment (USPTO delay)
Today
Lapsed Oct 21, 2026
2011
2032
Clock starts
Nov 21, 2011
Nov 21, 2011
No longer in force
Oct 21, 2026
Oct 21, 2026
Granted
Oct 21, 2014
Oct 21, 2014
Term would have run to
Jan 22, 2032
Jan 22, 2032
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
62
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.
Its term would have run to Jan 22, 2032: its 20-year base term plus 62 days of term adjustment for prosecution delay. Confidence: Medium. 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 Nov 21, 2011, when application 13/301,763, the earliest non-provisional in its chain, was filed (this one was filed Mar 23, 2012) | Nov 21, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +62 days, USPTO patent term adjustment record | Jan 22, 2032 | 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 | The fee record shows no payment for this window, and USPTO's status still reads "Patented Case" | lapsed Oct 21, 2026 | Medium confidence |
| Computed term end | The steps above, in order | Oct 21, 2026 | Medium confidence |
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 |
|---|---|---|---|
| Dec 21, 2016 Reel 41168, frame 8 | Mykland, Robert Keith, MR | Ascenium Corporation | Assignment of Assignor's Interest |
| Aug 14, 2019 Reel 50057, frame 807 | Ascenium Corporation | Ascenium Investment, Inc. | Change of Name |
| Sep 17, 2019 Reel 50405, frame 982 | Ascenium Investment Inc. | Ascenium Holding As | Assignment of Assignor's Interest |
| Sep 17, 2019 Reel 50406, frame 414 | Ascenium Holding As | Ascenium 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.
What's changing
Note
The 62 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
10
later US patents cite this one
That is above the median of utility patents granted in 2014 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.