Term ends Apr 28, 2028 · Medium confidence
20-year base term ends Apr 28, 2028
Why Medium: A parent in the chain could not be resolved.
Held by Amicus Therapeutics, Inc.
Filed May 18, 2023 as application 18/199,125 · Granted Apr 14, 2026
Base term, 20 years from filing
Today
2008
2028
Clock starts
Apr 28, 2008
Apr 28, 2008
Term ends
Apr 28, 2028
Apr 28, 2028
Granted
Apr 14, 2026
Apr 14, 2026
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
None due
Maintenance fees
This term ends before the first maintenance fee's grace period does, 4 years from grant, so no fee can end it early.
12
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 is its 20-year base term, with no adjustment for prosecution delay. No maintenance fee can end this term early. 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 Apr 28, 2008, when application PCT/US2008/061764, the earliest non-provisional in its chain, was filed (this one was filed May 18, 2023); a parent in its chain could not be resolved (the next row) | Apr 28, 2028 | 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 | None on file | no change | 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 | No maintenance fee can end the term early | In force | High confidence |
| Computed term end | The steps above, in order | Apr 28, 2028 | Medium confidence |
This family
| US 9,056,101 | In force Nov 2030 | Nov 2030 |
| US 9,999,618 | In force Apr 2028 | Apr 2028 |
| US 10,925,866 | In force Apr 2028 | Apr 2028 |
| US 11,033,538 | In force Apr 2028 | Apr 2028 |
| US 10,525,045 | In force Apr 2028 | Apr 2028 |
| US 12,070,453 | In force Jul 2036 | Jul 2036 |
| US 12,599,595 | this patent Apr 2028 | Apr 2028 |
| US 12,599,594 | In force Jul 2036 | Jul 2036 |
8 of 12 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 |
|---|---|---|---|
| Oct 6, 2023 Reel 65177, frame 196 | Amicus Therapeutics, Inc. | Wilmington Trust, National Association | Security Interest |
| Apr 27, 2026 Reel 75493, frame 968 | Biomarin Pharmaceutical Inc.; Amicus Therapeutics, Inc. | Citibank, N.A., as Collateral Agent | Security Interest |
| Apr 27, 2026 Reel 75494, frame 30 | Wilmington Trust, National Association | Amicus Therapeutics, Inc. | 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.
What's changing
Apr 2028
Term ends Apr 28, 2028. No further fees fall due before then
Citations
We have no citation count for this patent yet. That is not the same as never having been cited.
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.