Also listed on Skybox Security, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded May 30, 2025 (TCG Senior Funding, L.L.C.).
Term ends Apr 12, 2032 · High confidence
20-year base term ends May 21, 2028
Held by Spear Parent, Inc.
Filed May 21, 2008 as application 12/124,155 · Granted Dec 31, 2013
Base term plus 1422 days of patent term adjustment (USPTO delay)
Today
2008
2032
Clock starts
May 21, 2008
May 21, 2008
Term ends
Apr 12, 2032
Apr 12, 2032
Granted
Dec 31, 2013
Dec 31, 2013
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
1,422
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.
2
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 1422 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 May 21, 2008, when this application, 12/124,155, was filed | May 21, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1422 days, USPTO patent term adjustment record | Apr 12, 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 | Apr 12, 2032 | High confidence |
This family
| US 8,621,552 | this patent Apr 2032 | Apr 2032 |
| US 9,088,617 | In force May 2028 | May 2028 |
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 |
|---|---|---|---|
| Jul 1, 2008 Reel 21175, frame 726 | Lotem, Amnon; Hauit, Alexander; Circus, Ravid; Raab, Moshe; Arev, Amos; Cohen, Gideon; Sheffer, Tal | Skybox Security Inc. | Assignment of Assignor's Interest |
| Aug 31, 2018 Reel 46769, frame 426 | Skybox Security, Inc. | Silicon Valley Bank | Security Interest |
| Oct 3, 2019 Reel 50613, frame 83 | Skybox Security, Inc. | Ally Bank | Security Interest |
| Oct 8, 2019 Reel 50664, frame 927 | Silicon Valley Bank | Skybox Security, Inc. | Acknowledgment of Termination of Intellectual Property Security Agreement |
| Dec 1, 2022 Reel 62034, frame 779 | Ally Bank, As Agent | Skybox Security, Inc. | Release of IP Security Agreement |
| Dec 6, 2022 Reel 61994, frame 530 | Skybox Security, Inc. | Jpmorgan Chase Bank, N.a. | Security Interest |
| Feb 25, 2025 Reel 70328, frame 572 | Skybox Security, Inc. | Jpmorgan Chase Bank, N.a. | Corrective Assignment to Correct the Correct the Property List by Deleting Patent Application No. 10/409,993 and Adding Patent No. 10,409,993 Previously Recorded at Reel: 61994 Frame: 530. Assignor(S) Hereby Confirms the Security Interest. |
| Feb 25, 2025 Reel 70326, frame 871 | Jpmorgan Chase Bank, N.a. | Skybox Security, Inc. | Release of Security Interest |
| May 16, 2025 Reel 71138, frame 372 | Skybox Security, Inc. | Spear Parent, Inc. | Assignment of Assignor's Interest |
| May 30, 2025 Reel 71464, frame 732 | Spear Parent, Inc. | TCG Senior Funding, L.L.C., as Collateral Agent | Patent Security Agreement |
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
Apr 2032
Term ends Apr 12, 2032. No further fees fall due before then
Note
The 1422 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
31
later US patents cite this one
That is top 25% of utility patents granted in 2013 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.