Lapsed May 13, 2026 on the fee record · Medium confidence
20-year base term ended Jun 28, 2026
Why Medium: A parent in the chain could not be resolved.
Third maintenance fee unpaid; grace period ended.
Held by Rohm Co., Ltd.
Filed Nov 19, 2013 as application 14/083,492 · Granted May 13, 2014
Base term, 20 years from filing
Today
Lapsed May 13, 2026
2006
2026
Clock starts
Jun 28, 2006
Jun 28, 2006
No longer in force
May 13, 2026
May 13, 2026
Granted
May 13, 2014
May 13, 2014
Term would have run to
Jun 28, 2026
Jun 28, 2026
base term
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,664,779, to Jun 28, 2026. The term already ends on or before that date, so the cap shortened nothing.
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.
4
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 Jun 28, 2026: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Jun 28, 2006, when application PCT/JP2006/312882, the earliest non-provisional in its chain, was filed (this one was filed Nov 19, 2013); a parent in its chain could not be resolved (the next row) | Jun 28, 2026 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,664,779) | resolves to Jun 28, 2026, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | lapsed May 13, 2026 | High confidence |
| Computed term end | The steps above, in order | May 13, 2026 | Medium confidence |
This family
| US 8,164,201 | In force Dec 2026 | Dec 2026 |
| US 8,664,779 | Lapsed on the fee record Mar 2026 | Mar 2026 |
| US 8,723,339 | this patent May 2026 | May 2026 |
3 of 4 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 |
|---|---|---|---|
| Nov 19, 2013 Reel 31627, frame 590 | Kasai, Masaki; Miyata, Osamu | Rohm Co., Ltd. | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,664,779, ends no earlier than this term, so it caps nothing.
Citations
0
later US patents cite this one
That is below 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.