Term ends Sep 1, 2029 · High confidence
20-year base term ends Sep 1, 2029
Held by Xero Limited
Filed Feb 4, 2013 as application 13/758,792 · Granted May 13, 2014
Base term, 20 years from filing
Today
2009
2029
Clock starts
Sep 1, 2009
Sep 1, 2009
Term ends
Sep 1, 2029
Sep 1, 2029
Granted
May 13, 2014
May 13, 2014
base term
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,370,307, to Sep 1, 2029. The term already ends on or before that date, so the cap shortened nothing.
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.
4
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Sep 1, 2009, when application 12/551,790, the earliest non-provisional in its chain, was filed (this one was filed Feb 4, 2013) | Sep 1, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,370,307) | resolves to Sep 1, 2029, no earlier than this term, so no change | 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 | Sep 1, 2029 | High confidence |
This family
| US 8,370,307 | In force Dec 2030 | Dec 2030 |
| US 8,725,697 | this patent Sep 2029 | Sep 2029 |
| US 9,330,137 | In force Sep 2029 | Sep 2029 |
| US 10,860,432 | In force Sep 2029 | Sep 2029 |
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 |
|---|---|---|---|
| Mar 17, 2014 reel/frame not recorded | Wolfe, Andrew | Empire Technology Development LLC | Assignment of Assignor's Interest |
| Mar 17, 2014 reel/frame not recorded | Wolfe, Andrew | Glitter Technology LLP | Assignment of Assignor's Interest |
| Mar 17, 2014 Reel 32454, frame 550 | Intellectual Ventures Asia Pte. Ltd. | Empire Technology Development LLC | Assignment of Assignor's Interest |
| Mar 17, 2014 Reel 32458, frame 936 | Glitter Technology LLP | Intellectual Ventures Asia Pte. Ltd. | Attestation Regarding Assignment |
| Mar 17, 2014 Reel 32454, frame 331 | Wolfe, Andrew | Empire Technology Development LLC; Glitter Technology LLP | Assignment of Assignor's Interest |
| Apr 8, 2016 Reel 38225, frame 449 | Wolfe, Andrew | Glitter Technology LLP | Assignment of Assignor's Interest |
| Apr 8, 2016 Reel 38227, frame 900 | Wolfe, Andrew | Empire Technology Development LLC | Assignment of Assignor's Interest |
| Apr 8, 2016 Reel 38225, frame 613 | Intellectual Ventures Asia Pte. Ltd. | Empire Technology Development LLC | Assignment of Assignor's Interest |
| Apr 8, 2016 Reel 38391, frame 437 | Glitter Technology LLP | Intellectual Ventures Asia Pte. Ltd. | Assignment of Assignor's Interest |
| Jan 29, 2019 Reel 48373, frame 217 | Empire Technology Development LLC | Crestline Direct Finance, L.p. | Security Interest |
| Mar 19, 2021 Reel 55650, frame 943 | Crestline Direct Finance, L.p. | Empire Technology Development LLC | Release of Security Interest |
| Jun 30, 2021 Reel 56719, frame 48 | Empire Technology Development, LLC | Xero Limited | Assignment of Assignor's Interest |
| Apr 11, 2022 Reel 59660, frame 526 | Empire Technology Development, LLC | Xero Limited | Corrective Assignment to Correct the Application Number 13458792 Previously Recorded at Reel: 056719 Frame: 0048. Assignor(S) Hereby Confirms the Assignment . |
| Sep 22, 2025 Reel 72936, frame 464 | Crestline Direct Finance, L.P., as Collateral Agent | Empire Technology Development LLC | Release of Security Interest in Patents, Recorded on January 29, 2019 at Reel 048373 Frame 0217 |
| Jun 22, 2026 Reel 75799, frame 53 | Crestline Direct Finance, L.P., as Collateral Agent | Empire Technology Development LLC | Release of Security Interest in Patents, Recorded on January 29, 2019, at Reel/Frame 048373/0217 |
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
Sep 2029
Term ends Sep 1, 2029. No further fees fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,370,307, ends no earlier than this term, so it caps nothing.
Citations
4
later US patents cite this one
That is below the median of utility patents granted in 2014 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.