Term ended no later than Nov 18, 2025 · Medium confidence
20-year base term ended Nov 18, 2025
Held by Mirus LLC
Filed Nov 17, 2008 as application 12/272,352 · Granted Jan 19, 2010
Base term, 20 years from filing
Today
Ended no later than Nov 18, 2025
2005
2026
Clock starts
Nov 18, 2005
Nov 18, 2005
Ended no later than
Nov 18, 2025
Nov 18, 2025
Granted
Jan 19, 2010
Jan 19, 2010
base term
after the term ends
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
None
Term adjustment
No prosecution delay on this record.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
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. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. All three maintenance fees were paid, so no fee lapse ended it. 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 Nov 18, 2005, when application 11/282,376, the earliest non-provisional in its chain, was filed (this one was filed Nov 17, 2008) | Nov 18, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | no later than Nov 18, 2025 | Medium confidence |
This family
| US 7,452,502 | In force no later than Jan 2027 | no later than Jan 2027 |
| US 7,452,501 | In force no later than Jan 2027 | no later than Jan 2027 |
| US 7,488,444 | In force no later than Dec 2026 | no later than Dec 2026 |
| US 7,540,994 | In force no later than Jan 2027 | no later than Jan 2027 |
| US 7,540,995 | Term ended no later than Jul 2026 | no later than Jul 2026 |
| US 7,648,590 | Term ended no later than Nov 2025 | no later than Nov 2025 |
| US 7,648,592 | this patent no later than Nov 2025 | no later than Nov 2025 |
| US 7,648,591 | Term ended no later than Nov 2025 | no later than Nov 2025 |
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 |
|---|---|---|---|
| Nov 17, 2008 Reel 21845, frame 232 | Icon Interventional Systems, Inc. | Icon Medical Corp. | Assignment of Assignor's Interest |
| Nov 17, 2008 Reel 21846, frame 16 | Furst, Joseph G.; Buckman, Raymond W., JR; Patel, Udayan | Icon Interventional Systems, Inc. | Assignment of Assignor's Interest |
| May 23, 2017 Reel 42481, frame 825 | Icon Medical Corp. | Mirus LLC | Assignment of Assignor's 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
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Nov 18, 2025. We will not guess the cap.
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2010 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. Related patents and pending applications may cover overlapping subject matter.