The Patent Finder
US

System for Dynamic Control of the Rolling of the Guide Roller(S) for an Assembly for Guiding a Vehicle Along at Least One Rail

US 9,132,847 In force
OverviewFamilyAssignmentsSources & methods

Term ends Oct 24, 2032 · High confidence

Filed Apr 28, 2014 as application 14/354,880 · Granted Sep 15, 2015
Base term, 20 years from filing
Today
20 years from filing
2012 2032
Clock starts
Oct 24, 2012
Term ends
Oct 24, 2032
Granted
Sep 15, 2015
base term 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.
None
Terminal disclaimer
No disclaimer on this record.
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.

This patent's term is its 20-year base term, with no adjustment for prosecution delay. 2 of 3 maintenance fees are paid so far. 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, 20 years from filingClock starts Oct 24, 2012, when application PCT/IB2012/055855, the earliest non-provisional in its chain, was filed (this one was filed Apr 28, 2014)Oct 24, 2032High 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
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderOct 24, 2032High confidence

This family

US 9,132,847this patent
Oct 2032
Oct 2032
1 of 2 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.
RecordedAssignorAssigneeConveyance
May 15, 2014
Reel 32900, frame 222
Andre, Jean-lucNewtlAssignment of Assignor's Interest
Sep 15, 2025
Reel 72256, frame 644
NewtlNTL HoldingAssignment of Assignor's Interest
Sep 17, 2025
Reel 72283, frame 942
NTL HoldingAlstom Transport 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.

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