Lapsed Mar 31, 2021 on the fee record · High confidence
20-year base term ends Feb 20, 2027
Third maintenance fee unpaid; grace period ended.
Filed Sep 17, 2007 as application 11/856,374 · Granted Mar 31, 2009
Base term, 20 years from filing, plus 116 days of patent term adjustment (USPTO delay)
Today
Lapsed Mar 31, 2021
2007
2027
Clock starts
Feb 20, 2007
Feb 20, 2007
No longer in force
Mar 31, 2021
Mar 31, 2021
Granted
Mar 31, 2009
Mar 31, 2009
Term would have run to
Jun 16, 2027
Jun 16, 2027
base term
patent term adjustment
after the term ends
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
116
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.
4
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 16, 2027: its 20-year base term plus 116 days of term adjustment for prosecution delay. 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 Feb 20, 2007, when application 11/676,623, the earliest non-provisional in its chain, was filed (this one was filed Sep 17, 2007) | Feb 20, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +116 days, USPTO patent term adjustment record | Jun 16, 2027 | 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 | lapsed Mar 31, 2021 | High confidence |
| Computed term end | The steps above, in order | Mar 31, 2021 | High confidence |
This family
| US 7,314,945 | In force Feb 2027 | Feb 2027 |
| US 7,511,162 | Lapsed on the fee record Mar 2021 | Mar 2021 |
| US 7,511,164 | this patent Mar 2021 | Mar 2021 |
| US 7,714,154 | Lapsed on the fee record May 2022 | May 2022 |
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 |
|---|---|---|---|
| Oct 16, 2007 Reel 19969, frame 317 | Chaudhuri, Shan; Peters, Jason; Macdougall, Joseph; Ramsbottom, James | Multi Formulations Ltd. | Assignment of Assignor's Interest |
| Dec 17, 2009 Reel 23679, frame 28 | Multi Formulations Ltd. | Northern Innovations and Formulations Corp. | Merger |
| Aug 14, 2016 Reel 39427, frame 313 | Old Northern Innovations Corp. | 2462096 Ontario Limited | Assignment of Assignor's Interest |
| Aug 14, 2016 Reel 39427, frame 326 | Old Northern Innovations Corp. | 2508304 Ontario Limited | Assignment of Assignor's Interest |
| Aug 14, 2016 Reel 39427, frame 336 | Northern Innovations Holding Corp. | Old Northern Innovations Corp. | Merger |
| Aug 14, 2016 Reel 39672, frame 851 | Northern Innovations and Formulations Corp. | Northern Innovations Holding Corp. | Merger |
| Aug 14, 2016 Reel 39672, frame 990 | 2462096 Ontario Limited | Northern Innovations Holding Corp. | Change of Name |
| Aug 14, 2016 Reel 39672, frame 994 | Northern Innovations Holding Corp. | Old Northern Innovations Corp. | Change of Name |
| Aug 14, 2016 Reel 39673, frame 27 | 2508304 Ontario Limited | Northern Innovations Holding Corp. | Change of Name |
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 116 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2009 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.