The Patent Finder
US

System and Method for Virtualizing Backup Images

US 8,346,726 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Aug 20, 2015 (Silicon Valley Bank).

Term ends Mar 19, 2027 · High confidence

Filed Dec 21, 2007 as application 11/993,643 · Granted Jan 1, 2013
Base term plus 269 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2006 2027
Clock starts
Jun 23, 2006
Term ends
Mar 19, 2027
Granted
Jan 1, 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
269
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.
11
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 269 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 Jun 23, 2006, when application PCT/US2006/024479, the earliest non-provisional in its chain, was filed (this one was filed Dec 21, 2007)Jun 23, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+269 days, USPTO patent term adjustment recordMar 19, 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 orderMar 19, 2027High confidence

This family

Application PCT/US2006/024479PCT application
no patent term
no patent term
Application PCT/US2006/024478PCT application
no patent term
no patent term
US 8,346,726this patent
Mar 2027
Mar 2027
US 7,937,547In force
Jun 2028
Jun 2028
US 8,255,651Term ended
Jun 2026
Jun 2026
US 8,706,992Term ended
Jun 2026
Jun 2026
US 9,329,941Term ended
Jun 2026
Jun 2026
US 9,116,847Term ended
Jun 2026
Jun 2026
8 of 11 applications in this family shown, earliest filings first. 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.
RecordedAssignorAssigneeConveyance
Jul 14, 2010
Reel 24678, frame 539
Syncsort IncorporatedGci Capital Markets LLC, as Administrative AgentSecurity Agreement
Jun 23, 2014
Reel 33158, frame 76
Syncsort IncorporatedDPX Corp.Assignment of Assignor's Interest
Jun 23, 2014
Reel 33217, frame 48
DPX Corp.Catalogic Software, Inc.Change of Name
Jul 15, 2014
Reel 33329, frame 334
Cgi Capital Markets LLCGci Capital Markets, LLCRelease of Security Interest
Aug 20, 2015
Reel 36397, frame 29
Catalogic Software, Inc.Silicon Valley BankSecurity Agreement
Dec 23, 2016
Reel 41187, frame 473
Golub Capital Markets LLC, Formerly Known as Gci Capital Markets LLCSyncsort IncorporatedRelease of Security Interest in Patents at Reel/Frame No. 24678/0539
Sep 19, 2019
Reel 50433, frame 90
Catalogic Software, Inc.Western Alliance BankIntellectual Property Security Agreement
May 24, 2021
Reel 56325, frame 719
Catalogic Software, Inc.Silicon Valley BankRelease of Security Interest
Jun 15, 2021
Reel 56551, frame 581
Western Alliance BankCatalogic Software, Inc.Release of 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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited