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
20-year base term ends Dec 6, 2026
Why Medium: A parent in the chain could not be resolved.
Held by Magnolia Purple Corporation
Filed Aug 5, 2011 as application 13/137,326 · Granted Dec 27, 2011
Base term, 20 years from filing
Today
2006
2026
Clock starts
Dec 6, 2006
Dec 6, 2006
Term ends
Dec 6, 2026
Dec 6, 2026
Granted
Dec 27, 2011
Dec 27, 2011
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.
None
Terminal disclaimer
No disclaimer on this record.
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. 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.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Dec 6, 2006, when application 11/634,262, the earliest non-provisional in its chain, was filed (this one was filed Aug 5, 2011); a parent in its chain could not be resolved (the next row) | Dec 6, 2026 | 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 | None on file | no change | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 6, 2026 | Medium confidence |
This family
| Application 11/634,262 | Abandoned not computed | not computed |
| Application 12/923,481 | Abandoned not computed | not computed |
| US 8,085,360 | this patent Dec 2026 | Dec 2026 |
| US 8,416,364 | In force Dec 2026 | Dec 2026 |
| US 8,817,205 | In force 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.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Aug 5, 2011 Reel 26761, frame 791 | Kurihara, Hiroshi | Hitachi Displays, Ltd. | Assignment of Assignor's Interest |
| Dec 13, 2011 Reel 27482, frame 140 | IPS Alpha Support Co., Ltd. | Panasonic Liquid Crystal Display Co., Ltd. | Merger |
| Dec 13, 2011 Reel 27615, frame 589 | Hitachi, Displays, Ltd. | Hitachi Displays, Ltd.; IPS Alpha Support Co., Ltd. | Attached Are (1) the Company Split Documents in Japanese with English Translation Thereof and (2) the Certificate of Company Split Document in Japanese with English Translation, Which Together Convey 50% Ownership of the Registered Patents as Listed in the Attached to Each of the Receiving Parties (SEE Page 10, Exhibit 2-1, Section 1 of the English Translation of the Company Split Plan.) |
| Dec 13, 2011 reel/frame not recorded | Hitachi, Displays, Ltd. | Hitachi Displays, Ltd. | Attached Are (1) the Company Split Documents in Japanese with English Translation Thereof and (2) the Certificate of Company Split Document in Japanese with English Translation, Which Together Convey 50% Ownership of the Registered Patents as Listed in the Attached to Each of the Receiving Parties (SEE Page 10, Exhibit 2-1, Section 1 of the English Translation of the Company Split Plan.) |
| Dec 13, 2011 reel/frame not recorded | Hitachi, Displays, Ltd. | IPS Alpha Support Co., Ltd. | Attached Are (1) the Company Split Documents in Japanese with English Translation Thereof and (2) the Certificate of Company Split Document in Japanese with English Translation, Which Together Convey 50% Ownership of the Registered Patents as Listed in the Attached to Each of the Receiving Parties (SEE Page 10, Exhibit 2-1, Section 1 of the English Translation of the Company Split Plan.) |
| Nov 17, 2023 Reel 65614, frame 223 | Hitachi Displays, Ltd. | Japan Display East, Inc. | Change of Name |
| Nov 17, 2023 Reel 65614, frame 644 | 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 America | Nunc Pro Tunc Assignment |
| Nov 17, 2023 Reel 65654, frame 250 | Japan Display, Inc. | Japan Display, Inc. | Change of Address |
| Jul 10, 2025 Reel 71890, frame 202 | Japan Display Inc. | Magnolia Purple Corporation | 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.
What's changing
Dec 2026
Term ends Dec 6, 2026. No further fees fall due before then
Citations
3
later US patents cite this one
That is below the median of utility patents granted in 2011 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.