Term ends Aug 28, 2038 · High confidence
20-year base term ends Apr 27, 2038
Held by Material Sciences Corporation
Filed Sep 17, 2019 as application 16/494,828 · Granted Aug 10, 2021
Base term plus 123 days of patent term adjustment (USPTO delay)
Today
2018
2038
Clock starts
Apr 27, 2018
Apr 27, 2018
Term ends
Aug 28, 2038
Aug 28, 2038
Granted
Aug 10, 2021
Aug 10, 2021
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
123
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.
This patent's term runs 123 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is 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 Apr 27, 2018, when application PCT/US2018/029854, the earliest non-provisional in its chain, was filed (this one was filed Sep 17, 2019) | Apr 27, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +123 days, USPTO patent term adjustment record | Aug 28, 2038 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Aug 28, 2038 | High confidence |
This family
| Application PCT/US2018/029854 | PCT application no patent term | no patent term |
| US 11,084,061 | this patent Aug 2038 | Aug 2038 |
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 |
|---|---|---|---|
| Oct 13, 2020 Reel 54064, frame 436 | Bortell, Peter Isaac; Tullis, Bryan Joseph | Productive Research LLC; Material Sciences Corporation | Corrective Assignment to Correct the Application Number Previously Recorded on Reel 050430 Frame 0982. Assignor(S) Hereby Confirms the Application Number. |
| Oct 13, 2020 reel/frame not recorded | Bortell, Peter Isaac; Tullis, Bryan Joseph | Productive Research LLC | Corrective Assignment to Correct the Application Number Previously Recorded on Reel 050430 Frame 0982. Assignor(S) Hereby Confirms the Application Number. |
| Oct 13, 2020 reel/frame not recorded | Bortell, Peter Isaac; Tullis, Bryan Joseph | Material Sciences Corporation | Corrective Assignment to Correct the Application Number Previously Recorded on Reel 050430 Frame 0982. Assignor(S) Hereby Confirms the Application Number. |
| Dec 27, 2021 Reel 58485, frame 832 | Material Sciences Corporation; Material Sciences Corporation, Engineered Materials and Solutions Group, Inc. | Bank Of Montreal, As Administrative Agent | Security Interest |
| Mar 14, 2025 Reel 70520, frame 1 | Material Sciences Corporation; Material Sciences Corporation, Engineered Materials and Solutions Group, Inc.; Continuous Colour Coat Limited | TCW Asset Management Company LLC, as Agent | Security Interest |
| Nov 3, 2026 reel/frame not recorded | TCW Asset Management Company LLC | Material Sciences Corporation | Release of Security Interest |
| Nov 3, 2026 reel/frame not recorded | TCW Asset Management Company LLC | Material Sciences Corporation, Engineered Materials and Solutions Group, Inc. | Release of Security Interest |
| Nov 3, 2026 reel/frame not recorded | TCW Asset Management Company LLC | Continuous Colour Coat Limited | Release of Security Interest |
| Nov 3, 2026 Reel 76619, frame 782 | TCW Asset Management Company LLC | Material Sciences Corporation; Material Sciences Corporation, Engineered Materials and Solutions Group, Inc.; Continuous Colour Coat Limited | 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
Aug 2038
Term ends Aug 28, 2038. Maintenance fees still fall due before then
Note
The 123 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2021 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.