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US

Apparatus and Methods for Uniformly Forming Porous Semiconductor on a Substrate

US 8,906,218 In force
OverviewFamilyAssignmentsSources & methods

Also listed on Beamreach Solar, Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Collateral for a security interest recorded Dec 26, 2023 (First-Citizens Bank & Trust Company).

Term ends Sep 23, 2031 · High confidence

Filed Nov 3, 2011 as application 13/288,721 · Granted Dec 9, 2014
Base term plus 616 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2010 2031
Clock starts
Jan 15, 2010
Term ends
Sep 23, 2031
Granted
Dec 9, 2014
base term patent term adjustment 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
616
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
10
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 runs 616 days past its 20-year base term on 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 Jan 15, 2010, when application 12/688,495, the earliest non-provisional in its chain, was filed (this one was filed Nov 3, 2011)Jan 15, 2030High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+616 days, USPTO patent term adjustment recordSep 23, 2031High 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 orderSep 23, 2031High confidence

This family

US 8,926,803In force
Feb 2033
Feb 2033
US 8,999,058In force
Jun 2033
Jun 2033
US 9,076,642In force
Jan 2031
Jan 2031
US 8,906,218this patent
Sep 2031
Sep 2031
US 9,890,465In force
Jan 2030
Jan 2030
Application 14/589,847Abandoned
not computed
not computed
US 9,869,031In force
Jan 2031
Jan 2031
US 9,771,662In force
Jan 2030
Jan 2030
8 of 10 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 25, 2012
Reel 28270, frame 158
Kramer, Karl-josef; Moslehi, Mehrdad M.; Tamilmani, Subramanian; Kamian, George D; Ashjaee, Jay; Yonehara, TakaoSolexel, Inc.Assignment of Assignor's Interest
Jan 7, 2015
Reel 34731, frame 1
Solexel, Inc.Opus BankSecurity Interest
Jul 26, 2017
Reel 43342, frame 439
Solexel, Inc.Beamreach Solar, Inc.Change of Name
Jul 27, 2017
Reel 43350, frame 822
Ob Realty, LLCOb Realty, LLCRecordation of Foreclosure of Patent Properties
Jul 28, 2017
Reel 43367, frame 649
Solexel, Inc.Beamreach Solar, Inc.Change of Name
Sep 29, 2017
Reel 44062, frame 383
Opus BankOb Realty, LLCAssignment of Loan Documents
Dec 20, 2017
Reel 44920, frame 495
Ob Realty, LLCTrutag Technologies, Inc.Assignment of Assignor's Interest
Dec 26, 2023
Reel 66140, frame 667
Trutag Technologies, Inc.First-Citizens Bank & Trust CompanySecurity Interest
Oct 1, 2024
Reel 69083, frame 367
First-Citizens Bank & Trust CompanyKumukahi Holdings, Inc.Non-Recourse Assignment of Intellectual Property Security Agreement
Nov 12, 2024
Reel 69240, frame 893
Trutag Technologies, Inc.Kumukahi Holdings, Inc.Security 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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