Collateral for a security interest recorded Mar 20, 2017 (Madison Capital Funding LLC).

Term ends no later than Nov 20, 2026 · Medium confidence

In force on USPTO's status record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.

Held by Marshall Excelsior Company

Filed Apr 8, 2011 as application 29/389,333 · Granted Nov 20, 2012

Base term, 14 years from grant

Today

14 years from grant

Ends no later than Nov 20, 2026

2012 2026

Clock starts
Nov 20, 2012

Ends no later than
Nov 20, 2026

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.

Unresolved

Terminal disclaimer

On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.

14 years from grant

Base term

No maintenance fees are payable on this kind of patent.

This patent's term is its base term, 14 years from grant, with no adjustment for prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. No maintenance fees are payable on this kind of patent. Confidence: Medium. 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, 14 years from grant	Granted Nov 20, 2012	Nov 20, 2026	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	Disclaimer on file (approved), reference document not resolved	no cap applied, and none guessed	Medium confidence
Patent term extension	None on file	no change	High confidence
Computed term end	The steps above, in order	no later than Nov 20, 2026	Medium 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
Jul 20, 2011 Reel 26617, frame 786	Hoffman, Alex L.; Blanchard, Frederick W.	Marshall Excelsior Company	Assignment of Assignor's Interest
Mar 20, 2017 Reel 41646, frame 795	Marshall Excelsior Co.	Madison Capital Funding LLC, as Agent	Security Interest
Apr 26, 2022 Reel 59796, frame 319	Madison Capital Funding LLC, as Retiring Agent	Apogem Capital LLC, as Successor Agent	Assignment of Intellectual Property Security Agreement

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center

No maintenance fees are payable on this kind of patent, so the record carries no fee events.

What's changing

Nov 2026

Term ends no later than Nov 20, 2026. No maintenance fees are payable on this kind of patent

Note

A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed

Open question

A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Nov 20, 2026. We will not guess the cap.

Citations

later US patents cite this one

That is above the median of design patents granted in 2012 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

This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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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