Method and Apparatus for Detecting an Initial Lubrication of a Moving Component

US 12,578,308 In force

Overview Sources & methods

Term ends Nov 25, 2041 · Medium confidence

Computed 20-year base term

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

Held by U.E. Systems, Inc.

Filed Sep 14, 2022 as application 17/944,419 · Granted Mar 17, 2026

Base term plus 338 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Nov 25, 2041

2020 2041

Clock starts
Dec 22, 2020

Term ends
Nov 25, 2041

Granted
Mar 17, 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

338

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 Dec 22, 2020, when the earliest non-provisional application in its chain was filed (this one was filed Sep 14, 2022); a parent in its chain could not be resolved (the next row)	Dec 22, 2040	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	+338 days, USPTO patent term adjustment record	Nov 25, 2041	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	Nov 25, 2041	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.

Method and Apparatus for Detecting an Initial Lubrication of a Moving Component

Term ends Nov 25, 2041 · Medium confidence

20-year base term ends Dec 22, 2040

How we calculated this date

Sources