Collateral for a security interest recorded May 8, 2021 (BNP Paribas).
Term ends Oct 28, 2029 · High confidence
20-year base term ends Apr 6, 2029
Held by Spartech LLC
Filed Apr 6, 2009 as application 12/418,962 · Granted Apr 28, 2015
Base term plus 205 days of patent term adjustment (USPTO delay)
Today
2009
2029
Clock starts
Apr 6, 2009
Apr 6, 2009
Term ends
Oct 28, 2029
Oct 28, 2029
Granted
Apr 28, 2015
Apr 28, 2015
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
205
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
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 205 days past its 20-year base term on prosecution delay. 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 Apr 6, 2009, when this application, 12/418,962, was filed | Apr 6, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +205 days, USPTO patent term adjustment record | Oct 28, 2029 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 28, 2029 | 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 | this patent 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 |
|---|---|---|---|
| Apr 6, 2009 Reel 22508, frame 240 | Palama, Michael J. | Spartech Corporation | Assignment of Assignor's Interest |
| Mar 28, 2013 Reel 30105, frame 575 | PolyOne Designed Structures and Solutions LLC; Spartech Research and Development, LLC; Spartech Polycom, Inc.; Franklin-Burlington Plastics, Inc.; Spartech Polycast, Inc.; Spartech International - U.S. Distribution Co.; Alchem Plastics Corporation; Spartech Polycom (Texas), Inc.; Spartech Townsend, Inc.; Spartech FCD, LLC; Polymer Extruded Products, LLC; Creative Forming, LLC | Wells Fargo Capital Finance, LLC, as Administrative Agent | Security Agreement |
| Apr 18, 2013 Reel 30242, frame 137 | PolyOne Designed Structures and Solutions LLC | The Bank of New York Mellon Trust Company, N.A. | Patent Security Agreement |
| Apr 19, 2013 Reel 30249, frame 513 | PolyOne Designed Structures and Solutions LLC | Northwestern Mutual Life Insurance Company; Guardian Life Insurance Company of America; Massachusetts Mutual Life Insurance Company; The Mutual Insurance Company of New York; Aid Association for Lutherans; Allstate Life Insurance Company; General American Life Insurance Company; Rga Reinsurance Company; Security Mutual Life Insurance Company of New York; Jefferson-Pilot Life Insurance Company | Patent Security Agreement |
| Apr 19, 2013 reel/frame not recorded | PolyOne Designed Structures and Solutions LLC | Northwestern Mutual Life Insurance Company | Patent Security Agreement |
| Apr 19, 2013 reel/frame not recorded | PolyOne Designed Structures and Solutions LLC | Guardian Life Insurance Company of America | Patent Security Agreement |
| Apr 19, 2013 reel/frame not recorded | PolyOne Designed Structures and Solutions LLC | Massachusetts Mutual Life Insurance Company | Patent Security Agreement |
| Apr 19, 2013 reel/frame not recorded | PolyOne Designed Structures and Solutions LLC | The Mutual Insurance Company of New York | Patent Security Agreement |
| Apr 19, 2013 reel/frame not recorded | PolyOne Designed Structures and Solutions LLC | Aid Association for Lutherans | Patent Security Agreement |
| Apr 19, 2013 reel/frame not recorded | PolyOne Designed Structures and Solutions LLC | Allstate Life Insurance Company | Patent Security Agreement |
| Apr 19, 2013 reel/frame not recorded | PolyOne Designed Structures and Solutions LLC | General American Life Insurance Company | Patent Security Agreement |
| Apr 19, 2013 reel/frame not recorded | PolyOne Designed Structures and Solutions LLC | Rga Reinsurance Company | Patent Security Agreement |
| Apr 19, 2013 reel/frame not recorded | PolyOne Designed Structures and Solutions LLC | Security Mutual Life Insurance Company of New York | Patent Security Agreement |
| Apr 19, 2013 reel/frame not recorded | PolyOne Designed Structures and Solutions LLC | Jefferson-Pilot Life Insurance Company | Patent Security Agreement |
| Feb 27, 2014 Reel 32310, frame 933 | Spartech Corporation | PolyOne Designed Structures and Solutions LLC | Merger |
| Nov 18, 2015 Reel 37129, frame 101 | The Bank of New York Mellon Trust Company, N.A. | PolyOne Designed Structures and Solutions LLC | Release (REEL 030242/ Frame 0137) |
| 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 |
| Jul 19, 2017 Reel 43046, frame 137 | Citibank, N.a. | PolyOne Designed Structures and Solutions LLC | Release of Security Interest |
| Jul 21, 2017 Reel 43061, frame 439 | Wells Fargo Capital Finance, LLC, as Administrative Agent | PolyOne Designed Structures and Solutions LLC; Spartech Research and Development, LLC; Spartech Polycom, Inc.; Franklin-Burlington Plastics, Inc.; Spartech Polycast, Inc.; Spartech International - U.S. Distribution Co.; Alchem Plastics Corporation; Spartech Polycom (Texas), Inc.; Spartech Townsend, Inc.; Spartech FCD, LLC; Polymer Extruded Products, LLC; Creative Forming, LLC | Release of Security Interest |
| Jul 21, 2017 Reel 43302, frame 312 | Northwestern Mutual Life Insurance Company; Guardian Life Insurance Company of America; Massachusetts Mutual Life Insurance Company; The Mutual Insurance Company of New York; Aid Association for Lutherans; Allstate Life Insurance Company; General American Life Insurance Company; Rga Reinsurance Company; Security Mutual Life Insurance Company of New York; Jefferson-Pilot Life Insurance Company | U.S. Bank National Association, as Collateral Agent | Notice of Partial Release of Security Interest in Patents |
| Jul 21, 2017 reel/frame not recorded | Wells Fargo Capital Finance, LLC, as Administrative Agent | PolyOne Designed Structures and Solutions LLC | Release of Security Interest |
| Jul 21, 2017 reel/frame not recorded | Wells Fargo Capital Finance, LLC, as Administrative Agent | Spartech Research and Development, LLC | Release of Security Interest |
| Jul 21, 2017 reel/frame not recorded | Wells Fargo Capital Finance, LLC, as Administrative Agent | Spartech Polycom, Inc. | Release of Security Interest |
| Jul 21, 2017 reel/frame not recorded | Wells Fargo Capital Finance, LLC, as Administrative Agent | Franklin-Burlington Plastics, Inc. | Release of Security Interest |
| Jul 21, 2017 reel/frame not recorded | Wells Fargo Capital Finance, LLC, as Administrative Agent | Spartech Polycast, Inc. | Release of Security Interest |
| Jul 21, 2017 reel/frame not recorded | Wells Fargo Capital Finance, LLC, as Administrative Agent | Spartech International - U.S. Distribution Co. | Release of Security Interest |
| Jul 21, 2017 reel/frame not recorded | Wells Fargo Capital Finance, LLC, as Administrative Agent | Alchem Plastics Corporation | Release of Security Interest |
| Jul 21, 2017 reel/frame not recorded | Wells Fargo Capital Finance, LLC, as Administrative Agent | Spartech Polycom (Texas), Inc. | Release of Security Interest |
| Jul 21, 2017 reel/frame not recorded | Wells Fargo Capital Finance, LLC, as Administrative Agent | Spartech Townsend, Inc. | Release of Security Interest |
| Jul 21, 2017 reel/frame not recorded | Wells Fargo Capital Finance, LLC, as Administrative Agent | Spartech FCD, LLC | Release of Security Interest |
| Jul 21, 2017 reel/frame not recorded | Wells Fargo Capital Finance, LLC, as Administrative Agent | Polymer Extruded Products, LLC | Release of Security Interest |
| Jul 21, 2017 reel/frame not recorded | Wells Fargo Capital Finance, LLC, as Administrative Agent | Creative Forming, LLC | Release of Security Interest |
| Sep 6, 2017 Reel 43672, frame 1 | PolyOne Designed Structures and Solutions LLC | Spartech LLC | Change of Name |
| 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
Oct 2029
Term ends Oct 28, 2029. No further fees fall due before then
Note
The 205 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is above the median of utility patents granted in 2015 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.