Collateral for a security interest recorded Sep 23, 2025 (Stellus Capital Investment Corporation).

Term ends Nov 26, 2032 · High confidence

Computed 20-year base term

Held by Domaille Engineering, LLC

Filed Dec 3, 2009 as application 12/630,483 · Granted Apr 29, 2014

Base term plus 1089 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Nov 26, 2032

2009 2032

Clock starts
Dec 3, 2009

Term ends
Nov 26, 2032

Granted
Apr 29, 2014

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

1,089

Days of term adjustment

Read from the USPTO patent term adjustment record, 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 grant. This counts the ones the record shows paid.

This patent's term runs 1089 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Dec 3, 2009, when this application, 12/630,483, was filed	Dec 3, 2029	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+1089 days, USPTO patent term adjustment record	Nov 26, 2032	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	3 of 3 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Nov 26, 2032	High confidence

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
Jun 8, 2010 Reel 24502, frame 250	Frazer, James T.	Domaille Engineering, LLC	Assignment of Assignor's Interest
Feb 6, 2013 Reel 29767, frame 419	Domaille Engineering, LLC	Domaille Engineering, LLC	Assignment of Assignor's Interest
Jan 20, 2014 Reel 32004, frame 621	Domaille Engineering, LLC	Domaille Engineering, LLC	Assignment of Assignor's Interest
Dec 2, 2016 Reel 40492, frame 937	Domaille Engineering, LLC	Byline Bank, As Agent	Security Interest
Dec 6, 2016 Reel 40536, frame 745	Domaille Engineering, LLC	Orix Corporate Capital Inc., as Agent	Security Interest
Feb 1, 2018 Reel 44796, frame 533	Domaille Engineering, LLC; Tech Manufacturing, LLC	Byline Bank, As Agent	Security Interest
Feb 1, 2019 reel/frame not recorded	Orix Corporate Capital Inc.	Domaille Engineering, LLC	Release of Security Interest
Feb 1, 2019 reel/frame not recorded	Orix Corporate Capital Inc.	Tech Manufacturing, LLC	Release of Security Interest
Feb 1, 2019 reel/frame not recorded	Byline Bank, As Agent	Domaille Engineering, LLC	Release of Security Interest
Feb 1, 2019 reel/frame not recorded	Byline Bank, As Agent	Tech Manufacturing, LLC	Release of Security Interest
Feb 1, 2019 Reel 48226, frame 368	Domaille Engineering, LLC	BMO Harris Bank N.A., as Agent	Patent Security Agreement
Feb 1, 2019 Reel 48223, frame 210	Orix Corporate Capital Inc.	Domaille Engineering, LLC; Tech Manufacturing, LLC	Release of Security Interest
Feb 1, 2019 Reel 48223, frame 323	Byline Bank, As Agent	Domaille Engineering, LLC; Tech Manufacturing, LLC	Release of Security Interest
Feb 4, 2019 Reel 48247, frame 778	Domaille Engineering, LLC	BMO Harris Bank N.A., as Agent	Patent Security Agreement
Nov 30, 2021 reel/frame not recorded	BMO Harris Bank N.A., as Agent	Domaille Engineering, LLC	Release of Security Interest
Nov 30, 2021 reel/frame not recorded	BMO Harris Bank N.A., as Agent	Tech Manufacturing, LLC	Release of Security Interest
Nov 30, 2021 Reel 58247, frame 482	BMO Harris Bank N.A., as Agent	Domaille Engineering, LLC; Tech Manufacturing, LLC	Release of Security Interest
Dec 1, 2021 Reel 58293, frame 252	Domaille Engineering, LLC; Tech Manufacturing, LLC; Addman Engineering, LLC	Ally Bank, As Collateral Agent	Security Agreement
Sep 23, 2025 Reel 72342, frame 612	Domaille Engineering, LLC	Stellus Capital Investment Corporation, as Administrative Agent	Security Interest
Sep 24, 2025 Reel 72355, frame 130	Ally Bank, As Collateral Agent	Domaille Engineering, LLC	Release of 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

Nov 2032

Term ends Nov 26, 2032. No further fees fall due before then

Note

The 1089 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Citations

later US patents cite this one

That is above the median of utility patents granted in 2014 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.

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