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US

Display Device and Planar Light Source Device

US 8,817,205 In force
OverviewFamilyAssignmentsSources & methods

Also listed on Panasonic Liquid Crystal Display Co., Ltd., an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Dec 6, 2026 · Medium confidence

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

Filed Mar 13, 2013 as application 13/799,971 · Granted Aug 26, 2014
Base term, 20 years from filing
Today
20 years from filing
2006 2026
Clock starts
Dec 6, 2006
Term ends
Dec 6, 2026
Granted
Aug 26, 2014
base term fee events 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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,416,364, to Dec 6, 2026. The term already ends on or before that date, so the cap shortened nothing.
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.
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 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. All three maintenance fees are recorded paid; no more fees are due. 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 Dec 6, 2006, when application 11/634,262, the earliest non-provisional in its chain, was filed (this one was filed Mar 13, 2013); a parent in its chain could not be resolved (the next row)Dec 6, 2026High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,416,364)resolves to Dec 6, 2026, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderDec 6, 2026Medium confidence

This family

Application 11/634,262Abandoned
not computed
not computed
Application 12/923,481Abandoned
not computed
not computed
US 8,085,360In force
Dec 2026
Dec 2026
US 8,416,364In force
Dec 2026
Dec 2026
US 8,817,205this patent
Dec 2026
Dec 2026
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
Mar 13, 2013
Reel 29985, frame 480
Kurihara, HiroshiHitachi Displays, Ltd.Assignment of Assignor's Interest
Mar 13, 2013
Reel 29985, frame 651
IPS Alpha Support Co., Ltd.Panasonic Liquid Crystal Display Co., Ltd.Merger
Mar 13, 2013
Reel 29991, frame 57
Hitachi Displays, Ltd.Hitachi Displays, Ltd.; IPS Alpha Support Co., Ltd.Company Split Documents Which Convey 50% Ownership to Each of the Receiving Parties
Mar 13, 2013
reel/frame not recorded
Hitachi Displays, Ltd.Hitachi Displays, Ltd.Company Split Documents Which Convey 50% Ownership to Each of the Receiving Parties
Mar 13, 2013
reel/frame not recorded
Hitachi Displays, Ltd.IPS Alpha Support Co., Ltd.Company Split Documents Which Convey 50% Ownership to Each of the Receiving Parties
Nov 27, 2013
Reel 31737, frame 260
Hitachi Displays, Ltd.Japan Display East Inc.Change of Name
Nov 27, 2013
Reel 31737, frame 484
Japan Display East Inc.Japan Display Inc.Change of Name
Nov 17, 2023
Reel 65615, frame 327
Panasonic Liquid Crystal Display Co., Ltd.Panasonic Intellectual Property Corporation of AmericaNunc Pro Tunc Assignment
Jul 10, 2025
Reel 71890, frame 202
Japan Display Inc.Magnolia Purple CorporationAssignment 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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