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Phosphor and Light-Emitting Equipment Using Phosphor

US 11,084,980 Lapsed on the fee record
OverviewFamilySources & methods

Lapsed Aug 10, 2025 on the fee record · Medium confidence

Why Medium: A terminal disclaimer is on file (approved) with no resolved reference, so the term may end earlier.

First maintenance fee unpaid; grace period ended.

Filed Aug 6, 2018 as application 16/055,343 · Granted Aug 10, 2021
Base term, 20 years from filing, plus 428 days of patent term adjustment (USPTO delay)
Today
Lapsed Aug 10, 2025
2004 2026
Clock starts
Nov 25, 2004
No longer in force
Aug 10, 2025
Granted
Aug 10, 2021
Term would have run to
Jan 27, 2026
base term patent term adjustment after the term ends 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
428
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
7
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 Jan 27, 2026: its 20-year base term plus 428 days of term adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Nov 25, 2004, when application PCT/JP2004/017895, the earliest non-provisional in its chain, was filed (this one was filed Aug 6, 2018)Nov 25, 2024High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+428 days, USPTO patent term adjustment recordJan 27, 2026High confidence
Terminal disclaimer capDisclaimer on file (approved), reference document not resolvedno cap applied, and none guessedMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 1 maintenance fees paidlapsed Aug 10, 2025High confidence
Computed term endThe steps above, in orderAug 10, 2025Medium confidence

This family

US 8,409,470In force
Nov 2026
Nov 2026
Application 13/775,334Abandoned
not computed
not computed
US 9,738,829Term ended
no later than Feb 2025
no later than Feb 2025
US 10,072,207Term ended
Nov 2024
Nov 2024
US 11,084,980this patent
Aug 2025
Aug 2025
US 11,697,765Term ended
no later than Nov 2024
no later than Nov 2024
6 of 7 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.

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 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited