The Patent Finder
US

Semiconductor Device and Method of Providing Z-Interconnect Conductive Pillars with Inner Polymer Core

US 9,640,504 In force
OverviewFamilyAssignmentsSources & methods

Term ends May 14, 2029 · High confidence

Filed Mar 25, 2014 as application 14/224,931 · Granted May 2, 2017
Base term plus 58 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2009 2029
Clock starts
Mar 17, 2009
Term ends
May 14, 2029
Granted
May 2, 2017
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
58
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.
9
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 58 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 Mar 17, 2009, when application 12/406,049, the earliest non-provisional in its chain, was filed (this one was filed Mar 25, 2014)Mar 17, 2029High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+58 days, USPTO patent term adjustment recordMay 14, 2029High 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 orderMay 14, 2029High confidence

This family

US 8,174,119In force
Apr 2029
Apr 2029
US 8,133,762In force
Sep 2029
Sep 2029
US 8,193,034Term ended
Nov 2026
Nov 2026
US 8,742,579In force
Aug 2029
Aug 2029
US 8,525,337Term ended
Nov 2026
Nov 2026
US 9,263,361Term ended
Nov 2026
Nov 2026
US 9,385,074Term ended
no later than Nov 2026
no later than Nov 2026
US 9,640,504this patent
May 2029
May 2029
8 of 9 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
Aug 6, 2015
Reel 36288, frame 748
Stats ChipPAC, Inc.; Stats ChipPAC Ltd.Citicorp International Limited, as Common Security AgentSecurity Interest
Apr 7, 2016
Reel 38378, frame 382
Stats ChipPAC Ltd.Stats ChipPAC Pte. Lte.Change of Name
Jun 16, 2020
Reel 52963, frame 546
Citicorp International Limited, as Common Security AgentStats ChipPAC, Inc.; Stats ChipPAC Pte. Ltd. Formerly Known as Stats ChipPAC Ltd.Release of Security Interest
Jun 16, 2020
reel/frame not recorded
Citicorp International Limited, as Common Security AgentStats ChipPAC, Inc.Release of Security Interest
Jun 16, 2020
reel/frame not recorded
Citicorp International Limited, as Common Security AgentStats ChipPAC Pte. Ltd. Formerly Known as Stats ChipPAC Ltd.Release of Security Interest
Sep 6, 2023
Reel 64869, frame 363
Stats ChipPAC Ltd.Stats ChipPAC Pte. Ltd.This Submission Is to Correct a Typographical Error in the Cover Sheet Previously Recorded on Reel: 038378 Frame: 0382 to Correct the Spelling of Assignee's Name from "Stats Chippac Pte. LTE." to "Stats Chippac Pte. Ltd."

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