Lapsed Jul 24, 2026 on the fee record · High confidence
20-year base term ended Apr 4, 2026
Second maintenance fee unpaid; grace period ended.
Held by Hypermed Imaging, Inc.
Filed Jan 21, 2015 as application 14/602,204 · Granted Jul 24, 2018
Base term, 20 years from filing, plus 274 days of patent term adjustment (USPTO delay)
Today
Lapsed Jul 24, 2026
2006
2027
Clock starts
Apr 4, 2006
Apr 4, 2006
No longer in force
Jul 24, 2026
Jul 24, 2026
Granted
Jul 24, 2018
Jul 24, 2018
Term would have run to
Jan 3, 2027
Jan 3, 2027
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
274
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,971,984, to Jan 3, 2027. The term already ends on or before that date, so the cap shortened nothing.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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 Jan 3, 2027: its 20-year base term plus 274 days of term adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 application 11/396,941, the earliest non-provisional in its chain, was filed (this one was filed Jan 21, 2015) | Apr 4, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +274 days, USPTO patent term adjustment record | Jan 3, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,971,984) | resolves to Jan 3, 2027, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 2 maintenance fees paid | lapsed Jul 24, 2026 | High confidence |
| Computed term end | The steps above, in order | Jul 24, 2026 | High confidence |
This family
| US 8,320,996 | In force no later than May 2029 | no later than May 2029 |
| US 8,374,682 | Lapsed on the fee record 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 | this patent 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 |
|---|---|---|---|
| Apr 14, 2015 Reel 35408, frame 932 | Freeman, Jenny E.; Panasyuk, Svetlana V.; Hopmeier, Michael J.; Brand, Derek; Schomacker, Kevin | Hypermed, Inc. | Assignment of Assignor's Interest |
| Apr 14, 2015 Reel 35408, frame 949 | 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 274 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,971,984, ends no earlier than this term, so it caps nothing.
Citations
23
later US patents cite this one
That is top 25% of utility patents granted in 2018 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.