Collateral for a security interest recorded Dec 16, 2021 (Royal Bank of Canada).

Term ends Apr 20, 2033 · High confidence

Computed 20-year base term

Held by The Cleaver-Brooks Company, Inc.

Filed Jul 19, 2011 as application 13/185,797 · Granted Dec 2, 2014

Base term plus 641 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Apr 20, 2033

2011 2033

Clock starts
Jul 19, 2011

Term ends
Apr 20, 2033

Granted
Dec 2, 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

641

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.

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 runs 641 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 Jul 19, 2011, when this application, 13/185,797, was filed	Jul 19, 2031	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+641 days, USPTO patent term adjustment record	Apr 20, 2033	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	Apr 20, 2033	High confidence

This family

US 8,899,326	this patent Apr 2033	Apr 2033
US 9,897,309	In force Apr 2033	Apr 2033

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
Sep 20, 2011 Reel 26935, frame 753	Vasudevan, Meenatchinathan	Cleaver-Brooks, Inc.	Assignment of Assignor's Interest
Dec 26, 2012 Reel 29540, frame 164	Cleaver-Brooks, Inc.	U.S. Bank National Association, as Collateral Agent; Royal Bank of Canada	Security Agreement
Dec 26, 2012 reel/frame not recorded	Cleaver-Brooks, Inc.	U.S. Bank National Association, as Collateral Agent	Security Agreement
Dec 26, 2012 reel/frame not recorded	Cleaver-Brooks, Inc.	Royal Bank of Canada	Security Agreement
Jul 17, 2014 Reel 33350, frame 617	Cleaver-Brooks, Inc.	Wilmington Trust National Association	Security Interest
Dec 14, 2017 Reel 44393, frame 297	U.S. Bank National Association, as Collateral Agent	Cleaver-Brooks, Inc.	Release of Security Interest
Dec 14, 2017 Reel 44401, frame 702	Cleaver-Brooks, Inc.	U.S. Bank National Association, as Collateral Agent	Security Interest
Dec 15, 2017 Reel 44405, frame 919	Wilmington Trust National Association	Cleaver-Brooks, Inc.	Release of Security Interest
Aug 30, 2021 Reel 57329, frame 669	Cleaver-Brooks, LLC	The Cleaver-Brooks Company, Inc.	Assignment of Assignor's Interest
Aug 30, 2021 Reel 57331, frame 131	The Cleaver-Brooks Company, Inc.	Royal Bank of Canada	Security Interest
Aug 30, 2021 Reel 57331, frame 182	The Cleaver-Brooks Company, Inc.	U.S. Bank National Association	Security Interest
Aug 30, 2021 Reel 57392, frame 177	Cleaver-Brooks, Inc.	Cleaver-Brooks, LLC	Change of Name
Dec 16, 2021 Reel 58533, frame 405	The Cleaver Brooks Company, Inc.	Royal Bank of Canada	Patent Security Agreement
Jul 18, 2022 Reel 60532, frame 952	The Cleaver- Brooks Company, Inc.	Barings Finance LLC, as Collateral Agent	Security Interest
Oct 27, 2022 Reel 61556, frame 326	Cleaver-Brooks of Canada Limited	Royal Bank of Canada	Release of Security Interest
Oct 27, 2022 Reel 61556, frame 369	The Cleaver-Brooks Company, Inc.; The Cleaver-Brooks Company, Inc.	U.S. Bank Trust Company, National Association, Successor in Interest to U.S. Bank National Association	Release of Security Interest
May 15, 2024 Reel 67424, frame 729	Barings Finance LLC, as Collateral Agent	The Cleaver-Brooks Company, Inc.	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

Apr 2033

Term ends Apr 20, 2033. No further fees fall due before then

Note

The 641 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 top 25% 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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