Collateral for a security interest recorded May 19, 2026 (Bank of America, N.A.).
Term ends Oct 15, 2033 · Medium confidence
20-year base term ended Dec 13, 2024
Why Medium: A parent in the chain could not be resolved.
Held by Olin Corporation
Filed Aug 30, 2006 as application 11/512,486 · Granted Feb 7, 2017
Base term plus 3228 days of patent term adjustment (USPTO delay)
Today
2004
2033
Clock starts
Dec 13, 2004
Dec 13, 2004
Term ends
Oct 15, 2033
Oct 15, 2033
Granted
Feb 7, 2017
Feb 7, 2017
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
3,228
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.
6
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 3228 days past its 20-year base term on prosecution delay. 2 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 Dec 13, 2004, when application 11/011,318, the earliest non-provisional in its chain, was filed (this one was filed Aug 30, 2006); a parent in its chain could not be resolved (the next row) | Dec 13, 2024 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +3228 days, USPTO patent term adjustment record | Oct 15, 2033 | 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 | Oct 15, 2033 | Medium confidence |
This family
| Application 11/011,318 | Abandoned not computed | not computed |
| Application 11/512,480 | Abandoned not computed | not computed |
| US 9,562,753 | this patent Oct 2033 | Oct 2033 |
| US D713,487 | In force Sep 2028 | Sep 2028 |
| Application PCT/US2007/077318 | PCT application no patent term | no patent term |
| Application PCT/US2007/077317 | PCT application no patent term | no patent term |
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 |
|---|---|---|---|
| Sep 12, 2006 Reel 18236, frame 517 | Stock, JR., Michael Eugene; Eberhart, Gerald Todd | Olin Corporation | Assignment of Assignor's Interest |
| Aug 7, 2020 Reel 53436, frame 262 | Olin Corporation | Bank Of America, N.a. | Security Agreement |
| Jul 29, 2021 Reel 57016, frame 561 | Bank Of America, N.a. | Olin Corporation | Release of Security Interest |
| May 19, 2026 Reel 74694, frame 881 | Olin Corporation; Olin Winchester, LLC | Bank of America, N.A., as Administrative Agent and Collateral May 19, 2026 | 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 2033
Term ends Oct 15, 2033. Maintenance fees still fall due before then
Note
The 3228 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
9
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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.