Term ends Nov 26, 2027 · High confidence
20-year base term ends Nov 26, 2027
Held by Alcon Inc.
Filed Nov 20, 2013 as application 14/085,695 · Granted Mar 29, 2016
Base term, 20 years from filing
Today
2007
2027
Clock starts
Nov 26, 2007
Nov 26, 2007
Term ends
Nov 26, 2027
Nov 26, 2027
Granted
Mar 29, 2016
Mar 29, 2016
base term
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,594,729, US 8,619,405, to Nov 26, 2027. The term already ends on or before that date, so the cap shortened nothing.
2 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.
4
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 is its 20-year base term, with no 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. 2 of 2 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 Nov 26, 2007, when application 11/945,028, the earliest non-provisional in its chain, was filed (this one was filed Nov 20, 2013) | Nov 26, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,594,729, US 8,619,405) | resolves to Nov 26, 2027, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 26, 2027 | High confidence |
This family
| US 7,594,729 | In force Nov 2027 | Nov 2027 |
| US 8,619,405 | In force Nov 2027 | Nov 2027 |
| US 9,295,381 | this patent Nov 2027 | Nov 2027 |
3 of 4 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 |
|---|---|---|---|
| Dec 15, 2014 Reel 34510, frame 949 | WF Systems, LLC | Wavetec Vision Systems, Inc. | Assignment of Assignor's Interest |
| Feb 9, 2017 Reel 41671, frame 59 | Wavetec Vision Systems, Inc. | Alcon Research, Ltd. | Merger |
| Feb 9, 2017 Reel 41671, frame 398 | Alcon Research, Ltd. | Novartis AG | Assignment of Assignor's Interest |
| Dec 10, 2019 Reel 51454, frame 788 | Novartis AG | Alcon Inc. | Confirmatory Deed of Assignment Effective April 8, 2019 |
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
Nov 2027
Term ends Nov 26, 2027. No further fees fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,594,729, US 8,619,405, ends no earlier than this term, so it caps nothing.
Citations
5
later US patents cite this one
That is above the median 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.