Collateral for a security interest recorded May 8, 2021 (BNP Paribas).
Term ends Aug 20, 2027 · High confidence
20-year base term ends Mar 29, 2027
Held by Spartech LLC
Filed Mar 29, 2007 as application 11/731,697 · Granted Oct 27, 2009
Base term plus 144 days of patent term adjustment (USPTO delay)
Today
2007
2027
Clock starts
Mar 29, 2007
Mar 29, 2007
Term ends
Aug 20, 2027
Aug 20, 2027
Granted
Oct 27, 2009
Oct 27, 2009
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
144
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 144 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 Mar 29, 2007, when this application, 11/731,697, was filed | Mar 29, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +144 days, USPTO patent term adjustment record | Aug 20, 2027 | 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 | Aug 20, 2027 | High confidence |
This family
| US 7,609,450 | this patent 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
The 40 most recent of 62 recorded documents are shown; the 22 earliest are not. 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 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 |
| Sep 30, 2024 Reel 68735, frame 408 | Pnc Bank, National Accociation | Bank Of America, N.a. | Release of Security Interest |
| Sep 30, 2024 Reel 68735, frame 444 | Pnc Bank, National Association | Spartech Corporation; Atlas Alchem Plastics, Inc.; Alchem Plastics Corporation; Alchem Plastics, Inc.; Spartech Plastics, LLC; Polymer Extruded Products, Inc.; Spartech Polycast, Inc.; Spartech Townsend, Inc.; Spartech Polycom, Inc.; Franklin-Burlington Plastics, Inc.; Spartech CMD, LLC; Spartech FCD, LLC; Spartech SPD, LLC; Spartech Mexico Holding Company; Spartech Mexico Holding Company Two; Spartech Mexico Holdings, LLC; Creative Forming, Inc.; Pepac Holdings, Inc.; Spartech Research and Development, LLC | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Spartech Corporation | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Atlas Alchem Plastics, Inc. | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Alchem Plastics Corporation | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Alchem Plastics, Inc. | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Spartech Plastics, LLC | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Polymer Extruded Products, Inc. | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Spartech Polycast, Inc. | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Spartech Townsend, Inc. | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Spartech Polycom, Inc. | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Franklin-Burlington Plastics, Inc. | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Spartech CMD, LLC | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Spartech FCD, LLC | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Spartech SPD, LLC | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Spartech Mexico Holding Company | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Spartech Mexico Holding Company Two | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Spartech Mexico Holdings, LLC | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Creative Forming, Inc. | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Pepac Holdings, Inc. | Release of Security Interest |
| Sep 30, 2024 reel/frame not recorded | Pnc Bank, National Association | Spartech Research and Development, LLC | Release of 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
Aug 2027
Term ends Aug 20, 2027. No further fees fall due before then
Note
The 144 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
23
later US patents cite this one
That is above the median of utility patents granted in 2009 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.