Collateral for a security interest recorded May 8, 2021 (BNP Paribas).
Term ends Jan 14, 2032 · High confidence
20-year base term ends Sep 1, 2031
Held by Spartech LLC
Filed Jul 21, 2015 as application 14/804,859 · Granted Jun 6, 2017
Base term plus 135 days of patent term adjustment (USPTO delay)
Today
2011
2032
Clock starts
Sep 1, 2011
Sep 1, 2011
Term ends
Jan 14, 2032
Jan 14, 2032
Granted
Jun 6, 2017
Jun 6, 2017
base term
patent term adjustment
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
135
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
23
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 135 days past its 20-year base term on prosecution delay. 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 Sep 1, 2011, when application 13/223,412, the earliest non-provisional in its chain, was filed (this one was filed Jul 21, 2015) | Sep 1, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +135 days, USPTO patent term adjustment record | Jan 14, 2032 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 14, 2032 | High confidence |
This family
| US 7,609,450 | In force Aug 2027 | Aug 2027 |
| US D591,173 | Term ended Apr 2023 | Apr 2023 |
| US 9,018,310 | In force Oct 2029 | Oct 2029 |
| US 8,411,363 | In force Aug 2027 | Aug 2027 |
| US 8,485,377 | In force May 2031 | May 2031 |
| US 9,114,902 | In force Jun 2032 | Jun 2032 |
| US D768,509 | In force Oct 2030 | Oct 2030 |
| US D769,131 | In force Oct 2030 | Oct 2030 |
8 of 23 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Nov 12, 2015 Reel 37101, frame 448 | PolyOne Corporation; Colormatrix Holdings, Inc.; PolyOne Designed Structures and Solutions LLC | Wells Fargo Capital Finance, LLC, as Administrative Agent | Security Interest |
| Nov 16, 2015 Reel 37113, frame 144 | PolyOne Corporation; Colormatrix Holdings, Inc.; PolyOne Designed Structures and Solutions LLC | U.S. Bank National Association, as Collateral Agent | Patent Security Agreement |
| Nov 19, 2015 Reel 37146, frame 724 | PolyOne Corporation; Colormatrix Group, Inc.; Colormatrix Holdings, Inc.; The Colormatrix Corporation; Gayson Silicone Dispersions, Inc.; PolyOne Designed Structures and Solutions LLC | Citibank, N.A,, as Administrative Agent | Security Agreement |
| Jan 7, 2016 Reel 37508, frame 12 | PolyOne Corporation; Colormatrix Holdings, Inc.; PolyOne Designed Structures and Solutions LLC | U.S. Bank National Association, as Collateral Agent | Corrective Assignment to Correct the Incorrect Appl. No. 14/501,050 Previously Recorded at Reel: 037113 Frame: 0144. Assignor(S) Hereby Confirms the Security Agreement. |
| Jan 27, 2016 Reel 37603, frame 208 | PolyOne Corporation; Colormatrix Holdings, Inc.; PolyOne Designed Structures and Solutions LLC | Wells Fargo Capital Finance, LLC, as Administrative Agent | Corrective Assignment to Correct the Incorrect Application Number 14/501,050 Previously Recorded on Reel 037101 Frame 0448. Assignor(S) Hereby Confirms the Patent Security Agreement. |
| Apr 28, 2017 Reel 42176, frame 15 | Pramanik, Pranabes K. | PolyOne Designed Structures and Solutions LLC | Assignment of Assignor's Interest |
| May 1, 2017 Reel 42193, frame 399 | Temple, Loren F., JR. | PolyOne Designed Structures and Solutions LLC | Assignment of Assignor's Interest |
| Jul 19, 2017 Reel 43046, frame 137 | Citibank, N.a. | PolyOne Designed Structures and Solutions LLC | Release of Security Interest |
| Jul 21, 2017 Reel 43288, frame 273 | Wells Fargo Capital Finance, LLC, as Administrative Agent | PolyOne Designed Structures and Solutions LLC | Partial Release of Security Interests in Patents |
| Jul 21, 2017 Reel 43291, frame 827 | U.S. Bank National Association, as Collateral Agent | PolyOne Designed Structures and Solutions LLC | Notice of Partial Release of Security Interest in Patents |
| Sep 6, 2017 Reel 43672, frame 1 | PolyOne Designed Structures and Solutions LLC | Spartech LLC | Change of Name |
| Oct 24, 2017 Reel 44310, frame 989 | Wells Fargo Capital Finance, LLC, as Administrative Agent | PolyOne Designed Structures and Solutions LLC | Corrective Assignment to Correct the Patent Application Number 15/057724 Previously Recorded on Reel 043288 Frame 0273. Assignor(S) Hereby Confirms the Partial Release of Security Interest in Patents. |
| Dec 27, 2019 Reel 51431, frame 602 | Spartech LLC | Bnp Paribas, As Collateral Agent | Intellectual Property Security Agreement |
| May 7, 2021 Reel 56174, frame 836 | Bnp Paribas, As Collateral Agent | Spartech LLC | Release of Security Interest |
| May 8, 2021 Reel 56179, frame 25 | Spartech LLC | Bnp Paribas, As Collateral Agent | Security Interest |
| Aug 15, 2025 Reel 72489, frame 474 | Bnp Paribas, As Collateral Agent | Acquiom Agency Services LLC, as Collateral Agent | Assignment and Assumption of Intellectual Property Security Agreements |
| Feb 18, 2026 Reel 73826, frame 288 | Spartech LLC; Crawford Industries, L.l.c. | PNC Bank, National Association, 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
Jan 2032
Term ends Jan 14, 2032. Maintenance fees still fall due before then
Note
The 135 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
22
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.