Also listed on PC Tools Technology Pty Ltd., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Sep 13, 2022 (Bank of America, N.A.).
Term ends May 16, 2032 · High confidence
20-year base term ends Jun 6, 2028
Held by Nortonlifelock Inc.
Filed Jun 6, 2008 as application 12/134,481 · Granted Feb 17, 2015
Base term plus 1440 days of patent term adjustment (USPTO delay)
Today
2008
2032
Clock starts
Jun 6, 2008
Jun 6, 2008
Term ends
May 16, 2032
May 16, 2032
Granted
Feb 17, 2015
Feb 17, 2015
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
1,440
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.
This patent's term runs 1440 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 Jun 6, 2008, when this application, 12/134,481, was filed | Jun 6, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1440 days, USPTO patent term adjustment record | May 16, 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 | May 16, 2032 | High 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 |
|---|---|---|---|
| Jun 18, 2008 Reel 21111, frame 35 | Shevchenko, Sergei | PC Tools Technology Pty Ltd. | Assignment of Assignor's Interest |
| Jul 16, 2009 Reel 22960, frame 276 | PC Tools Technology Pty Ltd. | Symantec Corporation | Assignment of Assignor's Interest |
| Nov 4, 2019 Reel 50926, frame 560 | Symantec Corporation; Blue Coat LLC; Lifelock, Inc.,; Symantec Operating Corporation | Jpmorgan, N.a. | Security Agreement |
| Jan 30, 2020 Reel 51759, frame 845 | Symantec Corporation | Nortonlifelock Inc. | Change of Name |
| Sep 13, 2022 Reel 61422, frame 371 | Jpmorgan Chase Bank, N.a. | Bank of America, N.A., as Collateral Agent | Notice of Succession of Agency (REEL 050926 / Frame 0560) |
| Sep 13, 2022 Reel 62220, frame 1 | Nortonlifelock Inc. | Bank of America, N.A., as Collateral Agent | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
May 2032
Term ends May 16, 2032. No further fees fall due before then
Note
The 1440 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
95
later US patents cite this one
That is top 5% of utility patents granted in 2015 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.