Lapsed Feb 12, 2025 on the fee record · High confidence
20-year base term ended Apr 4, 2026
Third maintenance fee unpaid; grace period ended.
Held by Hypermed Imaging, Inc.
Filed Apr 4, 2006 as application 11/396,941 · Granted Feb 12, 2013
Base term, 20 years from filing, plus 85 days of patent term adjustment (USPTO delay)
Today
Lapsed Feb 12, 2025
2006
2026
Clock starts
Apr 4, 2006
Apr 4, 2006
No longer in force
Feb 12, 2025
Feb 12, 2025
Granted
Feb 12, 2013
Feb 12, 2013
Term would have run to
Jun 28, 2026
Jun 28, 2026
base term
patent term adjustment
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
85
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.
8
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Jun 28, 2026: its 20-year base term plus 85 days of term adjustment for prosecution delay. 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 4, 2006, when this application, 11/396,941, was filed | Apr 4, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +85 days, USPTO patent term adjustment record | Jun 28, 2026 | 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 | lapsed Feb 12, 2025 | High confidence |
| Computed term end | The steps above, in order | Feb 12, 2025 | High confidence |
This family
| US 8,320,996 | In force no later than May 2029 | no later than May 2029 |
| US 8,374,682 | this patent Feb 2025 | Feb 2025 |
| US 8,971,984 | Lapsed on the fee record Mar 2023 | Mar 2023 |
| US 10,321,869 | In force Dec 2026 | Dec 2026 |
| US 10,028,676 | Lapsed on the fee record Jul 2026 | Jul 2026 |
| Application 16/040,265 | Abandoned not computed | not computed |
6 of 8 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 |
|---|---|---|---|
| Aug 3, 2006 Reel 18059, frame 409 | Freeman, Jenny E.; Panasyuk, Svetlana V.; Hopmeier, Michael J.; Schomacker, Kevin; Brand, Derek | Hypermed, Inc. | Assignment of Assignor's Interest |
| Jun 22, 2012 Reel 28429, frame 958 | Hypermed, Inc. | Hypermed Imaging, Inc. | 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.
What's changing
Note
The 85 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
313
later US patents cite this one
That is top 1% of utility patents granted in 2013 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.