Arrangement of First Stage Power Factor Correction Circuit and Second Stage Dc/Dc Converter Between Package and Motherboard of It Equipment

US 12,591,283 In force

Overview Sources & methods

Term ends Nov 14, 2042 · High confidence

Computed 20-year base term

Held by Aa Power Inc.

Filed Aug 2, 2023 as application 18/229,404 · Granted Mar 31, 2026

Base term plus 102 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Nov 14, 2042

2022 2042

Clock starts
Aug 4, 2022

Term ends
Nov 14, 2042

Granted
Mar 31, 2026

base term patent term adjustment 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

102

Days of term adjustment

Read from the USPTO patent term adjustment record, not recalculated here.

No effect

Terminal disclaimer

Resolved from the filed document, referencing US 12,197,262, to Nov 14, 2042. The term already ends on or before that date, so the cap shortened nothing.

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.

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.

Step	Input	Date after this step	Confidence
Base term, 20 years from filing	Clock starts Aug 4, 2022, when the earliest non-provisional application in its chain was filed (this one was filed Aug 2, 2023)	Aug 4, 2042	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+102 days, USPTO patent term adjustment record	Nov 14, 2042	High confidence
Terminal disclaimer cap	Disclaimer resolved from the filed document (refs US 12,197,262)	resolves to Nov 14, 2042, no earlier than this term, so no change	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	0 of 3 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Nov 14, 2042	High confidence

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.

Not on this page: the patent's family, its recorded assignments and its citation count. USPTO's assignment records, linked above, list every recorded assignment.

Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.

Arrangement of First Stage Power Factor Correction Circuit and Second Stage Dc/Dc Converter Between Package and Motherboard of It Equipment

Term ends Nov 14, 2042 · High confidence

20-year base term ends Aug 4, 2042

How we calculated this date

Sources