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US

Radio Frequency Switch

US 7,564,323 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Nov 30, 2025 · High confidence

Held by KMW, Inc.
Filed Apr 11, 2008 as application 12/082,539 · Granted Jul 21, 2009
Base term, 20 years from filing
Today
20 years from filing
Term ended Nov 30, 2025
2005 2026
Clock starts
Nov 30, 2005
Term ended
Nov 30, 2025
Granted
Jul 21, 2009
base term after the term ends 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.
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.
19
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 were paid, so no fee lapse ended it. 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 Nov 30, 2005, when application PCT/KR2005/004067, the earliest non-provisional in its chain, was filed (this one was filed Apr 11, 2008)Nov 30, 2025High 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 events3 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderNov 30, 2025High confidence

This family

US 7,177,667Lapsed on the fee record
Feb 2019
Feb 2019
US 7,234,948Lapsed on the fee record
Jun 2019
Jun 2019
US 8,046,027In force
no later than Jan 2029
no later than Jan 2029
Application 12/006,996Abandoned
not computed
not computed
US 7,564,323this patent
Nov 2025
Nov 2025
US 7,605,674Lapsed on the fee record
Oct 2017
Oct 2017
US 8,004,844Lapsed on the fee record
Aug 2019
Aug 2019
Application 12/484,379Abandoned
not computed
not computed
8 of 19 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 4, 2008
Reel 21346, frame 24
Kim, Duk-yong; Moon, Young-chan; Lee, Gil-ho; Lee, Kang-hyunKMW, Inc.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