Systems and Methods for Non-Invasive Determination of COVID-19 Coronavirus Infection

US 11,510,592 In force

Overview Sources & methods

Term ends Oct 13, 2037 · Medium confidence

Computed 20-year base term

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

Held by Terahertz Group Ltd.

Filed Mar 19, 2021 as application 17/206,870 · Granted Nov 29, 2022

Base term plus 74 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Oct 13, 2037

2017 2037

Clock starts
Jul 31, 2017

Term ends
Oct 13, 2037

Granted
Nov 29, 2022

base term patent term adjustment 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

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.

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 Jul 31, 2017, when the earliest non-provisional application in its chain was filed (this one was filed Mar 19, 2021); a parent in its chain could not be resolved (the next row)	Jul 31, 2037	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	+74 days, USPTO patent term adjustment record	Oct 13, 2037	High confidence
Terminal disclaimer cap	None on record	no cap applied	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	Oct 13, 2037	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.

Systems and Methods for Non-Invasive Determination of COVID-19 Coronavirus Infection

Term ends Oct 13, 2037 · Medium confidence

20-year base term ends Jul 31, 2037

How we calculated this date

Sources