Collateral for a security interest recorded Nov 23, 2020 (BMO Harris Bank N.A.).
Term ends Aug 30, 2033 · High confidence
20-year base term ends Aug 30, 2033
Held by Pkware, Inc.
Filed Jul 15, 2015 as application 14/800,296 · Granted May 2, 2017
Base term, 20 years from filing
Today
2013
2033
Clock starts
Aug 30, 2013
Aug 30, 2013
Term ends
Aug 30, 2033
Aug 30, 2033
Granted
May 2, 2017
May 2, 2017
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 9,129,130, to Aug 30, 2033. The term already ends on or before that date, so the cap shortened nothing.
2 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.
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 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. 2 of 3 maintenance fees are paid so far. 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 Aug 30, 2013, when application 14/015,325, the earliest non-provisional in its chain, was filed (this one was filed Jul 15, 2015) | Aug 30, 2033 | 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 9,129,130) | resolves to Aug 30, 2033, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 30, 2033 | High confidence |
This family
| US 9,129,130 | In force Aug 2033 | Aug 2033 |
| US 9,639,711 | this patent Aug 2033 | Aug 2033 |
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 28, 2015 Reel 36192, frame 242 | Sturonas, Joe; Czotter, Theodore; Nevin, Chris; Robson, James | Pkware, Inc. | Assignment of Assignor's Interest |
| Nov 23, 2020 Reel 54501, frame 694 | Pkware, Inc. | BMO Harris Bank N.A. | Patent Security Agreement |
| Jun 2, 2025 Reel 71279, frame 876 | Pkware, Inc. | Audax Private Debt LLC, as Agent | Security Interest |
| Jun 3, 2025 Reel 71497, frame 411 | BMO Bank N.A. (F/K/A BMO Harris Bank N.A.), as Agent | Pkware, Inc. | Release of Security Interest Recorded at Reel/Frame 054501/0694 |
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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Aug 2033
Term ends Aug 30, 2033. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 9,129,130, ends no earlier than this term, so it caps nothing.
Citations
20
later US patents cite this one
That is top 25% of utility patents granted in 2017 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.