Universal Serial Bus (USB) Memory Device

US RE46,871 In force

Term ends Mar 17, 2027 · Low confidence

Computed 20-year base term

Reissue of US 7,518,879, which was surrendered when this reissue was granted; its term and maintenance fees continue here.

Held by Phison Electronics Corp.

Filed Mar 30, 2015 as application 14/672,246 · Granted May 22, 2018

Base term plus 361 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Mar 17, 2027

2006 2027

Clock starts
Mar 21, 2006

Term ends
Mar 17, 2027

Granted
May 22, 2018

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

361

Days of term adjustment

Read from the original patent's USPTO patent term adjustment record, which governs a reissue. Not recalculated here.

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 the original patent's grant (Apr 14, 2009). 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 Mar 21, 2006, when the earliest non-provisional application in its chain was filed (this one was filed Mar 30, 2015)	Mar 21, 2026	High confidence
Continuity chain	A reissue: its term follows the original patent's, with the original's term adjustment	follows the original patent	Medium confidence
Patent term adjustment	+361 days, the original patent's USPTO patent term adjustment record, which governs a reissue (35 U.S.C. 251). This reissue's own record carries none	Mar 17, 2027	Medium confidence
Terminal disclaimer cap	None on record	no cap applied	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	3 of 3 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Mar 17, 2027	Low 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.

Universal Serial Bus (USB) Memory Device

Term ends Mar 17, 2027 · Low confidence

20-year base term ended Mar 21, 2026

How we calculated this date

Sources