Term ends Jan 4, 2030 · High confidence
20-year base term ends Aug 3, 2029
Held by Masimo Corporation
Filed Aug 3, 2009 as application 12/534,823 · Granted Jun 19, 2012
Base term plus 154 days of patent term adjustment (USPTO delay)
Today
2009
2030
Clock starts
Aug 3, 2009
Aug 3, 2009
Term ends
Jan 4, 2030
Jan 4, 2030
Granted
Jun 19, 2012
Jun 19, 2012
base term
patent term adjustment
fee events
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
154
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
137
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 runs 154 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Aug 3, 2009, when this application, 12/534,823, was filed | Aug 3, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +154 days, USPTO patent term adjustment record | Jan 4, 2030 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 4, 2030 | High confidence |
This family
| US 6,920,345 | Term ended Sep 2023 | Sep 2023 |
| Application 60/485,761 | Provisional application no patent term | no patent term |
| US 6,970,792 | Term ended Jan 2024 | Jan 2024 |
| Application 60/540,082 | Pending not computed | not computed |
| Application PCT/US2004/021352 | PCT application no patent term | no patent term |
| US 7,254,429 | Term ended May 2025 | May 2025 |
| US 7,438,683 | Term ended Aug 2026 | Aug 2026 |
| Application 60/671,007 | Provisional application no patent term | no patent term |
8 of 137 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 |
|---|---|---|---|
| Jan 8, 2010 Reel 23757, frame 88 | Merritt, Sean; Lamego, Marcelo; Dalvi, Cristiano; Vo, Hung; Bruinsma, Johannes; Poeze, Jeroen; Lesmana, Ferdyan; Kiani, Massi Joe E. | Masimo Laboratories, Inc. | Assignment of Assignor's Interest |
| May 18, 2012 Reel 28236, frame 461 | Masimo Laboratories, Inc. | Cercacor Laboratories, Inc. | Change of Name |
| Mar 9, 2016 Reel 38049, frame 74 | Cercacor Laboratories, Inc. | Masimo Corporation | 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
Jan 2030
Term ends Jan 4, 2030. No further fees fall due before then
Note
The 154 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
801
later US patents cite this one
That is top 1% of utility patents granted in 2012 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.