Data Center Network Distribution System

US 11,283,227 In force

Overview Sources & methods

Term ends Nov 13, 2027 · Medium confidence

Computed 20-year base term

Why Medium: A parent in the chain could not be resolved.

Held by Zonit Structured Solutions, LLC

Filed Aug 9, 2017 as application 15/673,153 · Granted Mar 22, 2022

Base term plus 952 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer

Today

20 years from filing

Term ends Nov 13, 2027

2007 2027

Clock starts
Mar 14, 2007

Term ends
Nov 13, 2027

Granted
Mar 22, 2022

base term patent term adjustment fee events 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

952

Days of term adjustment

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

Capped

Terminal disclaimer

Resolved from the filed document, referencing US 8,848,722.

1 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.

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 14, 2007, when the earliest non-provisional application in its chain was filed (this one was filed Aug 9, 2017); a parent in its chain could not be resolved (the next row)	Mar 14, 2027	High confidence
Continuity chain	A parent in the chain could not be resolved	dated from this application's own claim	Medium confidence
Patent term adjustment	+952 days, USPTO patent term adjustment record	Oct 21, 2029	High confidence
Terminal disclaimer cap	Disclaimer resolved from the filed document (refs US 8,848,722)	capped to Nov 13, 2027	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	1 of 1 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Nov 13, 2027	Medium 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.

Data Center Network Distribution System

Term ends Nov 13, 2027 · Medium confidence

20-year base term ends Mar 14, 2027

How we calculated this date

Sources