The Patent Finder
US

Holder rail for a patient fixation mask

US D854,165 In force
OverviewFamilyAssignmentsSources & methods

Term ends Jul 16, 2034 · High confidence

Held by Brainlab SE
Filed Oct 19, 2017 as application 35/504,370 · Granted Jul 16, 2019
Base term, 15 years from grant
Today
15 years from grant
2019 2034
Clock starts
Jul 16, 2019
Term ends
Jul 16, 2034
base term 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.
None
Terminal disclaimer
No disclaimer on this record.
15 years from grant
Base term
No maintenance fees are payable on this kind of patent.
5
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term is its base term, 15 years from grant, with no adjustment for prosecution delay. No maintenance fees are payable on this kind of patent. 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.
StepInputDate after this stepConfidence
Base term, 15 years from grantGranted Jul 16, 2019Jul 16, 2034High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Computed term endThe steps above, in orderJul 16, 2034High confidence

This family

US 7,744,605In force
May 2028
May 2028
US 7,587,235Term ended
Jun 2026
Jun 2026
US 7,993,353In force
Aug 2028
Aug 2028
US 8,328,793Term ended
Jul 2026
Jul 2026
US D854,165this patent
Jul 2034
Jul 2034
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
Feb 24, 2026
Reel 73877, frame 190
Brainlab AGBrainlab SEChange of Name

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center

No maintenance fees are payable on this kind of patent, so the record carries no fee events.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited