Term ended Sep 29, 2024 · High confidence

Computed 20-year base term

USPTO later recorded it as expired for non-payment on Jul 13, 2026.

No current holder resolved from the recorded chain.

Filed Sep 12, 2012 as application 13/612,660 · Granted Jun 10, 2014

Base term plus 91 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ended Sep 29, 2024

2004 2026

Clock starts
Jun 30, 2004

Term ended
Sep 29, 2024

Granted
Jun 10, 2014

base term patent term adjustment after the term ends fee events 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

Days of term adjustment

Read from the USPTO patent term adjustment record, not recalculated here.

None

Terminal disclaimer

No disclaimer on this record.

2 of 2

Maintenance fees paid

Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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 91 days past its 20-year base term on prosecution delay. 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 Jun 30, 2004, when application 10/881,315, the earliest non-provisional in its chain, was filed (this one was filed Sep 12, 2012)	Jun 30, 2024	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+91 days, USPTO patent term adjustment record	Sep 29, 2024	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	2 of 2 maintenance fees paid	term ended	High confidence
USPTO status record	Recorded as expired for non-payment on Jul 13, 2026, after the term ended	no change	High confidence
Computed term end	The steps above, in order	Sep 29, 2024	High confidence

This family

US 7,860,550	Term ended no later than Jun 2026	no later than Jun 2026
US 8,160,205	In force Aug 2028	Aug 2028
Application PCT/US2006/018017	PCT application no patent term	no patent term
US 8,457,279	Term ended Jun 2024	Jun 2024
US 10,745,253	Term ended Jun 2026	Jun 2026
US 8,745,789	this patent Sep 2024	Sep 2024

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
Jan 13, 2016 Reel 37513, frame 170	Accuray Incorporated; Tomotherapy Incorporated	Cerberus Business Finance, LLC, as Collateral Agent	Assignment for Security - Patents
Jun 15, 2017 Reel 42821, frame 580	Cerberus Business Finance, LLC. as Collateral Agent	Accuray Incorporated; Tomotherapy Incorporated	Release of Security Interest
Jun 15, 2017 Reel 42826, frame 358	Accuray Incorporated; Tomotherapy Incorporated	Midcap Funding IV Trust (as Successor by Assignment from Midcap Financial Trust)	Security Interest
Jun 15, 2017 reel/frame not recorded	Cerberus Business Finance, LLC. as Collateral Agent	Accuray Incorporated	Release of Security Interest
Jun 15, 2017 reel/frame not recorded	Cerberus Business Finance, LLC. as Collateral Agent	Tomotherapy Incorporated	Release of Security Interest
Dec 19, 2017 Reel 44910, frame 685	Accuray Incorporated; Tomotherapy Incorporated	Midcap Financial Trust	Security Interest
Mar 1, 2019 Reel 48481, frame 804	Midcap Funding X Trust (as Successor by Assignment from Midcap Funding IV Trust, as Successor by Assignment from Midcap Financial Trust), as Existing Administrative Agent	Midcap Funding IV Trust, as Successor to Existing Administrative Agent	Assignment of Security Agreements
May 14, 2021 Reel 56247, frame 1	Accuray Incorporated; Tomotherapy Incorporated	Silicon Valley Bank, as Administrative and Collateral Agent	Security Interest
May 20, 2021 Reel 56318, frame 559	Midcap Funding IV Trust (as Successor by Assignment from Midcap Funding X Trust, as Successor by Assignment from Midcap Funding IV Trust, as Successor by Assignment from Midcap Financial Trust)	Accuray Incorporated; Tomotherapy Incorporated	Release of Security Interest
May 20, 2021 Reel 56318, frame 751	Midcap Financial Trust	Accuray Incorporated; Tomotherapy Incorporated	Release of Security Interest
May 20, 2021 reel/frame not recorded	Midcap Funding IV Trust (as Successor by Assignment from Midcap Funding X Trust, as Successor by Assignment from Midcap Funding IV Trust, as Successor by Assignment from Midcap Financial Trust)	Accuray Incorporated	Release of Security Interest
May 20, 2021 reel/frame not recorded	Midcap Funding IV Trust (as Successor by Assignment from Midcap Funding X Trust, as Successor by Assignment from Midcap Funding IV Trust, as Successor by Assignment from Midcap Financial Trust)	Tomotherapy Incorporated	Release of Security Interest
May 20, 2021 reel/frame not recorded	Midcap Financial Trust	Accuray Incorporated	Release of Security Interest
May 20, 2021 reel/frame not recorded	Midcap Financial Trust	Tomotherapy Incorporated	Release of Security Interest
Jun 6, 2025 Reel 71638, frame 34	First-Citizens Bank & Trust Company	Accuray Incorporated	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.

What's changing

Note

The 91 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 10% 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.

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