The Patent Finder
US

Radio Frequency Power Semiconductor Device Package Comprising Dielectric Platform and Shielding Plate

US 7,898,057 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Mar 1, 2015 on the fee record · High confidence

First maintenance fee unpaid; grace period ended.

Filed Mar 23, 2006 as application 11/387,617 · Granted Mar 1, 2011
Base term, 20 years from filing, plus 1209 days of patent term adjustment (USPTO delay)
Today
Lapsed Mar 1, 2015
2005 2028
Clock starts
Jan 6, 2005
No longer in force
Mar 1, 2015
Granted
Mar 1, 2011
Term would have run to
Apr 29, 2028
base term patent term adjustment after the term ends 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
1,209
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
13
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

Its term would have run to Apr 29, 2028: its 20-year base term plus 1209 days of term adjustment for prosecution delay. 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 6, 2005, when application PCT/US2005/000205, the earliest non-provisional in its chain, was filed (this one was filed Mar 23, 2006)Jan 6, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1209 days, USPTO patent term adjustment recordApr 29, 2028High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidlapsed Mar 1, 2015High confidence
Computed term endThe steps above, in orderMar 1, 2015High confidence

This family

Application PCT/US2005/000205PCT application
no patent term
no patent term
Application 10/557,135Abandoned
not computed
not computed
US 8,471,378In force
Feb 2027
Feb 2027
US 7,898,057this patent
Mar 2015
Mar 2015
US 8,530,963In force
Nov 2028
Nov 2028
US 7,656,003In force
Jun 2027
Jun 2027
Application PCT/US2007/075663PCT application
no patent term
no patent term
US 7,847,369Term ended
Jan 2025
Jan 2025
8 of 13 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
Mar 23, 2006
Reel 17717, frame 32
Davies, Robert; Seely, Warren Leroy; Pavio, Jeanne SHvvi Semiconductors, Inc.Assignment of Assignor's Interest
May 14, 2013
Reel 30408, frame 580
Hvvi Semiconductor, Inc.Estivation Properties LLCAssignment 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