Also listed on Spigit, Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Apr 4, 2031 · High confidence

Computed 20-year base term

Held by Owen, Katharyn E

Filed Jul 11, 2008 as application 12/172,140 · Granted Feb 19, 2013

Base term plus 997 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Apr 4, 2031

2008 2031

Clock starts
Jul 11, 2008

Term ends
Apr 4, 2031

Granted
Feb 19, 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

997

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.

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 997 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 Jul 11, 2008, when this application, 12/172,140, was filed	Jul 11, 2028	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+997 days, USPTO patent term adjustment record	Apr 4, 2031	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	Apr 4, 2031	High confidence

This family

US 8,380,595	this patent Apr 2031	Apr 2031
US 8,396,777	In force (reinstated) Mar 2030	Mar 2030
US 8,788,386	Lapsed on the fee record Jul 2026	Jul 2026

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
Jul 11, 2008 Reel 21228, frame 86	Fogarty, Matthew John	Xpree, Inc.	Assignment of Assignor's Interest
May 3, 2010 Reel 24323, frame 351	Xpree, Inc.	Crowdcast, Inc.	Change of Name
Nov 26, 2012 Reel 29351, frame 90	Crowdcast, Inc.	Spigit, Inc.	Assignment of Assignor's Interest
Sep 11, 2013 Reel 31207, frame 238	Spigit, Inc.	Silicon Valley Bank	Security Agreement
Sep 16, 2013 Reel 31217, frame 710	Spigit, Inc.	Partners for Growth IV, L.P.	Security Agreement
Oct 30, 2013 Reel 31509, frame 547	Spigit, Inc.	Mindjet LLC	Assignment of Assignor's Interest
Nov 7, 2014 Reel 34130, frame 306	Mindjet LLC	WF Fund IV Limited Partnership	Security Interest
May 8, 2015 Reel 35599, frame 528	Mindjet LLC	Mindjet US Inc.	Assignment of Assignor's Interest
Sep 11, 2015 Reel 36588, frame 423	Mindjet US Inc.	Spigit, Inc.	Change of Name
Aug 8, 2016 Reel 39373, frame 659	Silicon Valley Bank	Spigit, Inc.	Release of Security Interest
Aug 8, 2016 Reel 39373, frame 715	WF Fund IV Limited Partnership (C/O/B as Wellington Financial LP and Wellington Financial Fund IV	Mindjet LLC	Release of Security Interest
Dec 4, 2018 Reel 47673, frame 18	Partners for Growth IV, L.P.	Spigit, Inc.	Release of Security Interest
Jan 28, 2019 Reel 48152, frame 263	Spigit, Inc.	Ares Capital Corporation	Security Interest
Jan 30, 2020 Reel 51672, frame 245	Ares Capital Corporation	Spigit, Inc.	Release of Security Interest
Dec 17, 2020 Reel 54962, frame 236	Planview, Inc.; Spigit, Inc.; Troux Technologies, Inc.	UBS AG, Stamford Branch	First Lien Security Agreement
Dec 18, 2020 Reel 54804, frame 543	Planview, Inc.; Spigit, Inc.; Troux Technologies, Inc.	UBS AG, Stamford Branch	Second Lien Security Agreement
Dec 23, 2020 Reel 54740, frame 815	Ares Capital Corporation	Spigit, Inc.	Release of Security Interest
Oct 31, 2023 Reel 65407, frame 524	Spigit, Inc.	Owen, Katharyn E	Assignment of Assignor's Interest
Oct 2, 2026 Reel 76627, frame 68	Spigit, Inc.	Planview, Inc.	Corrective Assignment to Correct the Receiving Party Dataname: Planview, Inc. Previously Recorded on Reel 65407 Frame 524. Assignor(S) Hereby Confirms the Assignment.

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

Apr 2031

Term ends Apr 4, 2031. No further fees fall due before then

Note

The 997 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Citations

later US patents cite this one

That is above the median of utility patents granted in 2013 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.

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