Also listed on Prostor Systems, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Dec 4, 2017 (Opus Bank).
Term ends Jun 1, 2027 · High confidence
20-year base term ended Jan 12, 2026
Held by Tandberg Data Holdings S.A.R.L.
Filed Jan 12, 2006 as application 11/332,590 · Granted Aug 11, 2009
Base term plus 505 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Jan 12, 2006
Jan 12, 2006
Term ends
Jun 1, 2027
Jun 1, 2027
Granted
Aug 11, 2009
Aug 11, 2009
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
505
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 505 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 Jan 12, 2006, when this application, 11/332,590, was filed | Jan 12, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +505 days, USPTO patent term adjustment record | Jun 1, 2027 | 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 | Jun 1, 2027 | High confidence |
This family
| US 7,573,705 | this patent Jun 2027 | Jun 2027 |
| Application PCT/US2007/000589 | PCT application no patent term | no patent term |
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 12, 2006 Reel 17478, frame 14 | Alaimo, S. Christopher; Holstein, Alan; Spalding, Randall A.; Ulrich, Michael H.; Williams, Paul M. | Prostor Systems, Inc. | Assignment of Assignor's Interest |
| Jul 13, 2011 Reel 26583, frame 756 | Prostor Systems, Inc. | Tandberg Data Holdings S.A.R.L. | Assignment of Assignor's Interest |
| Sep 22, 2016 Reel 39837, frame 701 | Tandberg Data Holdings S.A. R.L. | FBC Holdings S.A. R.L. | Security Interest |
| Dec 4, 2017 Reel 44292, frame 315 | Tandberg Data Holdings S.À R.L. | Opus Bank | Security Interest |
| Nov 20, 2018 Reel 47552, frame 491 | FBC Holdings S.A R.L | Tandberg Data Holdings S.A R.L | Release of Security Interest |
| Oct 10, 2019 Reel 50681, frame 213 | Overland Storage, Inc.; Overland Technologies Luxembourg S.À R.L.; Tandberg Data Holdings S.À R.L. | JMB Capital Partners Lending, LLC | 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
Jun 2027
Term ends Jun 1, 2027. No further fees fall due before then
Note
The 505 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
3
later US patents cite this one
That is below the median of utility patents granted in 2009 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.