Lapsed Jan 23, 2026 on the fee record · Low confidence
20-year base term ends Apr 30, 2027
Second maintenance fee unpaid; grace period ended.
Held by Cepheid
Filed Nov 25, 2014 as application 14/553,622 · Granted Jan 23, 2018
Base term, 20 years from filing, plus 180 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Jan 23, 2026
2007
2027
Clock starts
Apr 30, 2007
Apr 30, 2007
No longer in force
Jan 23, 2026
Jan 23, 2026
Granted
Jan 23, 2018
Jan 23, 2018
Term would have run to
Jun 3, 2027
Jun 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
180
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,900,828.
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.
5
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 3, 2027: its 20-year base term plus 180 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. Confidence: Low. 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 30, 2007, when application 11/742,028, the earliest non-provisional in its chain, was filed (this one was filed Nov 25, 2014); a parent in its chain could not be resolved (the next row) | Apr 30, 2027 | 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 | +180 days, USPTO patent term adjustment record | Oct 27, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,900,828) | capped to Jun 3, 2027 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 2 maintenance fees paid | lapsed Jan 23, 2026 | High confidence |
| Further caveats on record | The record names parents not resolved: 11742028 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | Jan 23, 2026 | Low confidence |
This family
| US 8,900,828 | In force Jun 2027 | Jun 2027 |
| Application PCT/US2007/067895 | PCT application no patent term | no patent term |
| US 9,873,909 | this patent Jan 2026 | Jan 2026 |
| US 10,907,202 | In force Jun 2027 | Jun 2027 |
| US 12,123,052 | In force no later than Dec 2028 | no later than Dec 2028 |
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 26, 2014 Reel 34272, frame 815 | Smith, Joseph H.; Persing, David H.; Wortman, Alan; Chang, Ronald; Swenson, David | Cepheid | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 180 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,900,828.
Citations
25
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.