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US

Iterative Fisher Linear Discriminant Analysis

US 7,720,291 In force
OverviewAssignmentsSources & methods

Also listed on Vector CC Holdings III, SRL, which filed it. The recorded assignments below show how it moved.

Collateral for a security interest recorded May 1, 2026 (First-Citizens Bank & Trust Company).

Term ends Feb 24, 2027 · High confidence

Held by Corel Corporation
Filed Jul 9, 2004 · Granted May 18, 2010
Base term plus 960 days of PTA
Today
20 years from filing
2004 2027
Clock starts
Jul 9, 2004
Term ends
Feb 24, 2027
Granted
May 18, 2010
base term patent term adjustment fee events Updated Nov 1, 2026 · includes USPTO assignment & status data published Nov 1, 2026 and grant & fee data published Oct 27, 2026 (weekly) · how we know
960
Days of term adjustment
Read from the USPTO PTA 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 960 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Jul 9, 2004Jul 9, 2024High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+960 days, USPTO PTA recordFeb 24, 2027High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderFeb 24, 2027High 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.
RecordedAssignorAssigneeConveyance
Oct 19, 2004
Reel 15265, frame 364
Trifonov, Mikhail Ivanovich; Lalyko, Leonid BorisovichJasc Software IncorporatedAssignment of Assignor's Interest
Oct 25, 2004
Reel 15283, frame 735
Jasc Software, Inc.Corel Holdings CorporationAssignment of Assignor's Interest
Oct 27, 2004
Reel 15292, frame 556
Corel Holdings CorporationCorel CorporationAssignment of Assignor's Interest
Feb 28, 2005
Reel 16309, frame 733
Corel CorporationCredit Suisse First Boston Toronto BranchSecurity Agreement
Aug 2, 2005
Reel 16784, frame 245
Corel Corporation; Corel US Holdings, LLCCredit Suisse First Boston Toronto BranonSecond Lien Security Agreement
May 17, 2006
Reel 17636, frame 417
Credit Suisse Toronto Branch (FKA Credit Suisse First Boston Toronto Branch)Corel Corporation; Corel US Holdings, LLCRelease of Security Interests
May 17, 2006
reel/frame not recorded
Credit Suisse Toronto Branch (FKA Credit Suisse First Boston Toronto Branch)Corel CorporationRelease of Security Interests
May 17, 2006
reel/frame not recorded
Credit Suisse Toronto Branch (FKA Credit Suisse First Boston Toronto Branch)Corel US Holdings, LLCRelease of Security Interests
May 19, 2006
Reel 17656, frame 72
Corel Corporation; Corel Inc.; Corel Holdings Corporation; Winzip Computing LLC; Winzip International LLC; Winzip Computing LPMorgan Stanley & Company Inc.Security Agreement
Dec 29, 2006
Reel 18688, frame 422
Morgan Stanley & Company IncorporatedJpmorgan Chase Bank, N.a.Assignment and Assumption
May 16, 2013
Reel 30427, frame 331
Corel CorporationVector Cc Holdings, Srl; Vector CC Holdings III, SRL; Vector CC Holdings IV, SRLAssignment of Assignor's Interest
May 16, 2013
reel/frame not recorded
Corel CorporationVector Cc Holdings, SrlAssignment of Assignor's Interest

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

Maintenance fee events come from USPTO's own fee records. USPTO does not publish a per-patent fee page, so there is nothing to link to.

What's changing

Note
The 960 days of PTA are read from the USPTO record, not recalculated by us

Citations

22
later US patents cite this one
That is above the median of utility patents granted in 2010 in our data, the only group it is compared against. How we rank
Every date shows its work: base rule, PTA, PTE, disclaimer caps, fee overlay, 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.
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