Lapsed Mar 1, 2020 on the fee record · Medium confidence

Computed 20-year base term

Why Medium: A parent in the chain could not be resolved.

First maintenance fee unpaid; grace period ended.

Held by Johnson Electric S.A.

Filed Jan 18, 2013 as application 13/745,009 · Granted Mar 1, 2016

Base term, 20 years from filing, plus 439 days of patent term adjustment (USPTO delay)

Today

Lapsed Mar 1, 2020

2010 2032

Clock starts
Nov 17, 2010

No longer in force
Mar 1, 2020

Granted
Mar 1, 2016

Term would have run to
Jan 30, 2032

base term patent term adjustment after the term ends Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

439

Days of term adjustment

Read from the USPTO patent term adjustment record, not recalculated here.

None

Terminal disclaimer

No disclaimer on this record.

0 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.

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 Jan 30, 2032: its 20-year base term plus 439 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 17, 2010, when application 12/948,510, the earliest non-provisional in its chain, was filed (this one was filed Jan 18, 2013); a parent in its chain could not be resolved (the next row)	Nov 17, 2030	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	+439 days, USPTO patent term adjustment record	Jan 30, 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	0 of 3 maintenance fees paid	lapsed Mar 1, 2020	High confidence
Computed term end	The steps above, in order	Mar 1, 2020	Medium confidence

This family

US 9,033,117	In force Aug 2031	Aug 2031
US 9,272,686	this patent Mar 2020	Mar 2020
US 9,403,505	In force Nov 2030	Nov 2030

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
Jan 18, 2013 Reel 29657, frame 776	Chang, Hang Fung; Ma, Hang Cheong; Wong, Daniel Ming Hong	Johnson Electric S.A.	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

Note

The 439 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Citations

later US patents cite this one

That is above the median of utility patents granted in 2016 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.

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