Surrendered on reissue Jul 9, 2013 · Low confidence
20-year base term ended Apr 11, 2026
Surrendered on reissue Jul 9, 2013 · its term and maintenance fees continue in US RE44,348.
Held by Accessify, LLC
Filed Apr 11, 2006 as application 11/401,349 · Granted Aug 25, 2009
Base term, 20 years from filing, plus 498 days of patent term adjustment (USPTO delay)
Today
Surrendered Jul 9, 2013
2006
2027
Clock starts
Apr 11, 2006
Apr 11, 2006
No longer in force
Jul 9, 2013
Jul 9, 2013
Granted
Aug 25, 2009
Aug 25, 2009
Term would have run to
Aug 22, 2027
Aug 22, 2027
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
498
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 3
Maintenance fees paid
Fees paid on this patent before its reissue. Those after fall due on the reissue, which carries the term on.
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 498 days past its 20-year base term on prosecution delay. Confidence: Low. 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 Apr 11, 2006, when this application, 11/401,349, was filed | Apr 11, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +498 days, USPTO patent term adjustment record | Aug 22, 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 | No fee event states this; the fee state is read from the payments the fee record holds; the fee record shows no payment for this window, and USPTO's status still reads "Patented Case" | no change | Low confidence |
| Reissue | US RE44,348 issued Jul 9, 2013, and this patent's term continues in it (35 U.S.C. 251, 252) | surrendered Jul 9, 2013 | High confidence |
| Surrendered on reissue | The steps above, in order | Jul 9, 2013 | Low confidence |
This family
| US 7,580,036 | this patent Jul 2013 | Jul 2013 |
| US RE44,348 | In force Aug 2027 | Aug 2027 |
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 21, 2009 Reel 22127, frame 727 | Idelix Software Inc. | Noregin Assets N.v., L.l.c. | Assignment of Assignor's Interest |
| Feb 4, 2009 Reel 22207, frame 816 | Tigges, Mark H.a.; Montagnese, Catherine | Idelix Software Inc. | Assignment of Assignor's Interest |
| Dec 6, 2015 Reel 37220, frame 255 | Noregin Assets N.v., L.l.c. | Callahan Cellular L.L.C. | Merger |
| Feb 12, 2023 Reel 62708, frame 463 | Callahan Cellular L.L.C. | Intellectual Ventures Assets 186 LLC | Assignment of Assignor's Interest |
| Mar 24, 2023 Reel 63295, frame 1 | Mind Fusion, LLC | Intellectual Ventures Assets 191 LLC; Intellectual Ventures Assets 186 LLC | Security Interest |
| Mar 24, 2023 reel/frame not recorded | Mind Fusion, LLC | Intellectual Ventures Assets 191 LLC | Security Interest |
| Mar 24, 2023 reel/frame not recorded | Mind Fusion, LLC | Intellectual Ventures Assets 186 LLC | Security Interest |
| Jul 13, 2023 Reel 64271, frame 1 | Intellectual Ventures Assets 186 LLC | Mind Fusion, LLC | Assignment of Assignor's Interest |
| Jul 21, 2023 Reel 64357, frame 642 | Mind Fusion, LLC | Accessify, LLC | Assignment of Assignor's 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
Note
The 498 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
39
later US patents cite this one
That is top 25% 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.