Also listed on Hitachi Cable Fine-Tech, Ltd., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Dec 16, 2030 · High confidence
20-year base term ends Jun 17, 2030
Held by Hitachi Metals, Ltd.
Filed Jun 17, 2010 as application 12/817,822 · Granted Dec 2, 2014
Base term plus 182 days of patent term adjustment (USPTO delay)
Today
2010
2030
Clock starts
Jun 17, 2010
Jun 17, 2010
Term ends
Dec 16, 2030
Dec 16, 2030
Granted
Dec 2, 2014
Dec 2, 2014
base term
patent term adjustment
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
182
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
This patent's term runs 182 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 17, 2010, when this application, 12/817,822, was filed | Jun 17, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +182 days, USPTO patent term adjustment record | Dec 16, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 16, 2030 | High 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 |
|---|---|---|---|
| Jun 25, 2010 Reel 24594, frame 867 | Yamamoto, Yasuaki; Fukuchi, Etsuo; Kusano, Hiroo | Hitachi Cable Fine-Tech, Ltd. | Assignment of Assignor's Interest |
| Jan 28, 2014 Reel 32057, frame 240 | Hitachi Cable Fine-Tech, Ltd. | Hitachi Metals, 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.
What's changing
Dec 2030
Term ends Dec 16, 2030. No further fees fall due before then
Note
The 182 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.