Collateral for a security interest recorded Nov 7, 2025 (TCW Asset Management Company LLC).
Term ended no later than Jun 12, 2026 · Medium confidence
20-year base term ended Jun 30, 2024
Held by Accuray LLC
Filed Jun 30, 2004 as application 10/881,315 · Granted Dec 28, 2010
Base term plus 712 days of patent term adjustment (USPTO delay)
Today
Ended no later than Jun 12, 2026
2004
2026
Clock starts
Jun 30, 2004
Jun 30, 2004
Ended no later than
Jun 12, 2026
Jun 12, 2026
Granted
Dec 28, 2010
Dec 28, 2010
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
712
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
6
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 712 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. All three maintenance fees were paid, so no fee lapse ended it. 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, 20 years from filing | Clock starts Jun 30, 2004, when this application, 10/881,315, was filed | Jun 30, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +712 days, USPTO patent term adjustment record | Jun 12, 2026 | 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 |
| Fee events | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | no later than Jun 12, 2026 | Medium confidence |
This family
| US 7,860,550 | this patent 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 | Term ended 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 |
|---|---|---|---|
| Sep 15, 2004 Reel 15808, frame 127 | Saracen, Michael; Wang, James; Thomson, Euan; Earnst, Eric; Raanes, Christopher; Bodduluri, Mohan | Accuray, Inc. | Assignment of Assignor's Interest |
| 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 |
| Aug 13, 2025 Reel 72421, frame 584 | Accuray Incorporated | Accuray LLC | Assignment of Assignor's Interest |
| Nov 7, 2025 Reel 73575, frame 358 | Accuray LLC | TCW Asset Management Company LLC, as Collateral Agent | Grant of a Security Interest - Patents |
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
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 712 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Jun 12, 2026. We will not guess the cap.
Citations
277
later US patents cite this one
That is top 5% of utility patents granted in 2010 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.