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Behind the Ear Hearing Aid Part with Exchangeable Cover

US 7,580,538 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Aug 25, 2021 on the fee record · Medium confidence

Why Medium: A terminal disclaimer is on file (approved) with no resolved reference, so the term may end earlier.

Third maintenance fee unpaid; grace period ended.

Held by Oticon A/S
Filed Jun 18, 2008 as application 12/141,724 · Granted Aug 25, 2009
Base term, 20 years from filing
Today
Lapsed Aug 25, 2021
2008 2028
Clock starts
Jun 18, 2008
No longer in force
Aug 25, 2021
Granted
Aug 25, 2009
Term would have run to
Jun 18, 2028
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.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
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 Jun 18, 2028: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Jun 18, 2008, when this application, 12/141,724, was filedJun 18, 2028High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer on file (approved), reference document not resolvedno cap applied, and none guessedMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed Aug 25, 2021High confidence
Computed term endThe steps above, in orderAug 25, 2021Medium confidence

This family

US 7,580,538this patent
Aug 2021
Aug 2021
US 7,480,388In force
no later than Jun 2028
no later than Jun 2028
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.
RecordedAssignorAssigneeConveyance
Aug 22, 2008
Reel 21430, frame 958
Crook, BenBernafon AGAssignment of Assignor's Interest
Sep 11, 2019
Reel 50344, frame 160
Bernafon AGOticon A/SAssignment 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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