Collateral for a security interest recorded Feb 14, 2023 (Bank of America, N.A.).
Term ends no later than Nov 16, 2036 · Medium confidence
20-year base term ends Mar 4, 2035
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Held by Unify GmbH & Co. KG
Filed Dec 11, 2019 as application 16/710,343 · Granted Jan 17, 2023
Base term plus 623 days of patent term adjustment (USPTO delay)
Today
2015
2036
Clock starts
Mar 4, 2015
Mar 4, 2015
Ends no later than
Nov 16, 2036
Nov 16, 2036
Granted
Jan 17, 2023
Jan 17, 2023
base term
patent term adjustment
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
623
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
0 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.
3
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 623 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 0 of 3 maintenance fees are paid so far. Confidence: Medium. 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 Mar 4, 2015, when application 14/637,449, the earliest non-provisional in its chain, was filed (this one was filed Dec 11, 2019) | Mar 4, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +623 days, USPTO patent term adjustment record | Nov 16, 2036 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than Nov 16, 2036 | Medium confidence |
This family
| Application 14/637,449 | Abandoned not computed | not computed |
| US 10,542,056 | Lapsed on the fee record Jan 2024 | Jan 2024 |
| US 11,558,437 | this patent no later than Nov 2036 | no later than Nov 2036 |
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 |
|---|---|---|---|
| Dec 20, 2019 Reel 51344, frame 621 | Ruetschi, Johannes; Domingos, Luiz; Garbin, Christian | Unify GmbH & Co. KG | Assignment of Assignor's Interest |
| Dec 21, 2020 Reel 54822, frame 1 | Unify GmbH & Co. KG | Unify Patente GmbH & Co. KG | Confidential Patent Agreement |
| Jan 28, 2021 Reel 55058, frame 538 | Lederer, Thomas | Unify GmbH & Co. KG | Assignment of Assignor's Interest |
| Feb 14, 2023 Reel 62973, frame 194 | RingCentral, Inc. | Bank of America, N.A., as Collateral Agent | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Nov 2036
Term ends no later than Nov 16, 2036.
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 623 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Nov 16, 2036. We will not guess the cap.
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2023 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.