Term ended Jun 21, 2024 · High confidence
20-year base term ended Sep 30, 2023
USPTO later recorded it as expired for non-payment on Jan 6, 2025.
Held by Intellectual Ventures I LLC
Filed Apr 16, 2010 as application 12/762,028 · Granted Dec 4, 2012
Base term plus 265 days of patent term adjustment (USPTO delay)
Today
Term ended Jun 21, 2024
2003
2026
Clock starts
Sep 30, 2003
Sep 30, 2003
Term ended
Jun 21, 2024
Jun 21, 2024
Granted
Dec 4, 2012
Dec 4, 2012
base term
patent term adjustment
after the term ends
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
265
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.
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 265 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 Sep 30, 2003, when application 10/677,049, the earliest non-provisional in its chain, was filed (this one was filed Apr 16, 2010) | Sep 30, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +265 days, USPTO patent term adjustment record | Jun 21, 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 Jan 6, 2025, after the term ended | no change | High confidence |
| Computed term end | The steps above, in order | Jun 21, 2024 | High confidence |
This family
| US 7,703,140 | In force Dec 2026 | Dec 2026 |
| US 8,327,138 | this patent Jun 2024 | Jun 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 |
|---|---|---|---|
| Feb 11, 2011 Reel 25792, frame 991 | Nath, Satyajit; Vainstein, Klimenty; Ouye, Michael Michio | PSS Systems, Inc. | Assignment of Assignor's Interest |
| Feb 11, 2011 Reel 25793, frame 20 | PSS Systems, Inc. | Guardian Data Storage LLC | Assignment of Assignor's Interest |
| Jun 18, 2013 Reel 30638, frame 219 | Guardian Data Storage, LLC | Intellectual Ventures I LLC | Merger |
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
The 265 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
52
later US patents cite this one
That is top 25% of utility 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
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.