Collateral for a security interest recorded Mar 6, 2026 (Wells Fargo Bank, N.A.).

Term ends May 14, 2039 · High confidence

Computed 20-year base term

Held by TNT Crane & Rigging, Inc.

Filed May 24, 2022 as application 17/752,232 · Granted Apr 18, 2023

Base term, 20 years from filing

Today

20 years from filing

Term ends May 14, 2039

2019 2039

Clock starts
May 14, 2019

Term ends
May 14, 2039

Granted
Apr 18, 2023

base term 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

None

Term adjustment

No prosecution delay on this record.

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.

Family applications on record here

Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term is its 20-year base term, with no adjustment for prosecution delay. 0 of 3 maintenance fees are paid so far. Confidence: High. from the record

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 May 14, 2019, when application 16/412,001, the earliest non-provisional in its chain, was filed (this one was filed May 24, 2022)	May 14, 2039	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	None on file	no change	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	May 14, 2039	High confidence

This family

Application 62/671,399	Provisional application no patent term	no patent term
US 11,414,307	In force Oct 2040	Oct 2040
US 11,629,036	this patent May 2039	May 2039

The applications whose file history this site holds. The family may have others.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.

Recorded	Assignor	Assignee	Conveyance
May 24, 2022 Reel 60000, frame 555	Griego, Albert; Romero, Sam	TNT Crane & Rigging, Inc.	Assignment of Assignor's Interest
Mar 6, 2026 Reel 74003, frame 528	TNT Crane & Rigging, Inc.	Wells Fargo Bank, N.A., as Collateral Agent	Security Interest
Mar 9, 2026 Reel 74010, frame 820	TNT Crane & Rigging, Inc.	Wells Fargo Bank, National Association	Security Interest

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.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

What's changing

May 2039

Term ends May 14, 2039.

Citations

later US patents cite this one

That is below the median of utility patents granted in 2023 in our data, the only group it is compared against. How we rank

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.

Outrigger Pad Hoist Apparatus