Also listed on Chart Sequal Technologies Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Aug 12, 2031 · High confidence
20-year base term ends Sep 3, 2029
Held by Caire Inc.
Filed Sep 3, 2009 as application 12/553,801 · Granted Mar 8, 2016
Base term plus 708 days of patent term adjustment (USPTO delay)
Today
2009
2031
Clock starts
Sep 3, 2009
Sep 3, 2009
Term ends
Aug 12, 2031
Aug 12, 2031
Granted
Mar 8, 2016
Mar 8, 2016
base term
patent term adjustment
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
708
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.
This patent's term runs 708 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 Sep 3, 2009, when this application, 12/553,801, was filed | Sep 3, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +708 days, USPTO patent term adjustment record | Aug 12, 2031 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Aug 12, 2031 | High confidence |
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 |
|---|---|---|---|
| Oct 21, 2009 Reel 23403, frame 233 | Richard, Ronald F.; Edwards, Paul L. | Sequal Technologies, Inc. | Assignment of Assignor's Interest |
| Jul 15, 2010 Reel 24686, frame 289 | Sequal Technologies Inc. | Silicon Valley Bank | Addendum to Reel/Frame - 019331/0819 |
| Dec 29, 2010 Reel 25651, frame 276 | Silicon Valley Bank | Sequal Technologies, Inc. | Release |
| Mar 30, 2011 Reel 26065, frame 235 | Chart Sequal Technologies Inc. | JPMorgan Chase Bank, N.A., as Administrative Agent | Security Agreement |
| Apr 8, 2011 Reel 26096, frame 860 | Sequal Technologies, Inc. | Chart Sequal Technologies Inc. | Change of Name |
| Jan 30, 2014 Reel 32091, frame 330 | Chart Sequal Technologies Inc. | Caire Inc. | Merger |
| Feb 10, 2014 Reel 32230, frame 550 | Caire Inc. | JPMorgan Chase Bank, N.A., as Administrative Agent | Security Agreement |
| Dec 20, 2018 Reel 47968, frame 666 | JPMorgan Chase Bank, N.A., as Administrative Agent | Caire Inc. | Release of Security 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
Aug 2031
Term ends Aug 12, 2031. Maintenance fees still fall due before then
Note
The 708 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
48
later US patents cite this one
That is top 10% of utility patents granted in 2016 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.