Collateral for a security interest recorded Dec 27, 2023 (Adams Street Credit Advisors LP).
Lapsed Aug 8, 2025 on the fee record · High confidence
20-year base term ends Mar 25, 2034
Second maintenance fee unpaid; grace period ended.
Held by TIDI Products, LLC
Filed Mar 25, 2014 as application 14/225,268 · Granted Aug 8, 2017
Base term, 20 years from filing, plus 407 days of patent term adjustment (USPTO delay)
Today
Lapsed Aug 8, 2025
2014
2035
Clock starts
Mar 25, 2014
Mar 25, 2014
No longer in force
Aug 8, 2025
Aug 8, 2025
Granted
Aug 8, 2017
Aug 8, 2017
Term would have run to
May 6, 2035
May 6, 2035
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
407
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
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.
Its term would have run to May 6, 2035: its 20-year base term plus 407 days of term adjustment for prosecution delay. 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 Mar 25, 2014, when this application, 14/225,268, was filed | Mar 25, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +407 days, USPTO patent term adjustment record | May 6, 2035 | 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 | 1 of 3 maintenance fees paid | lapsed Aug 8, 2025 | High confidence |
| Computed term end | The steps above, in order | Aug 8, 2025 | High confidence |
This family
| US 9,724,242 | this patent Aug 2025 | Aug 2025 |
| US 10,660,798 | In force Jan 2035 | Jan 2035 |
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 |
|---|---|---|---|
| Feb 19, 2015 Reel 34988, frame 373 | Seguin, Art; Arambula, Gerry | Cenorin, LLC | Assignment of Assignor's Interest |
| Dec 7, 2018 Reel 47711, frame 776 | Cenorin, LLC | Covalon Technologies AG Ltd. | Assignment of Assignor's Interest |
| Jan 16, 2019 Reel 48031, frame 692 | Cenorin, LLC | Covalon Technologies AG Ltd. | Assignment of Assignor's Interest |
| Aug 11, 2021 Reel 57177, frame 890 | Covalon Technologies AG Ltd. | TIDI Aquaguard Operations Inc. | Change of Name |
| Aug 18, 2021 Reel 57217, frame 270 | TIDI Aquaguard Operations Inc. | Capital One, National Association, as Agent | Security Interest |
| Jan 4, 2022 Reel 58575, frame 341 | TIDI Aquaguard Operations Inc. | TIDI Aquaguard Operations LLC | Entity Conversion |
| Apr 26, 2022 Reel 59794, frame 422 | TIDI Aquaguard Operations, LLC | TIDI Products, LLC | Assignment of Assignor's Interest |
| Dec 27, 2023 Reel 66126, frame 953 | TIDI Products, LLC; Penblade, LLC | Adams Street Credit Advisors LP, as Collateral Agent | Security Interest |
| Jan 10, 2024 Reel 66079, frame 760 | Capital One, National Association, as the Agent | TIDI Aquaguard Operations LLC (Formerly Known as TIDI Aquaguard Operations Inc., Formerly Known as Covalon Technologies AG Ltd.) | Release of 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
Note
The 407 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
6
later US patents cite this one
That is above the median 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.