Collateral for a security interest recorded Apr 21, 2022 (HSBC Bank Canada).
Lapsed Jun 7, 2023 on the fee record · High confidence
20-year base term ends Sep 11, 2027
Third maintenance fee unpaid; grace period ended.
Filed Jul 8, 2009 as application 12/499,109 · Granted Jun 7, 2011
Base term, 20 years from filing
Today
Lapsed Jun 7, 2023
2007
2027
Clock starts
Sep 11, 2007
Sep 11, 2007
No longer in force
Jun 7, 2023
Jun 7, 2023
Granted
Jun 7, 2011
Jun 7, 2011
Term would have run to
Sep 11, 2027
Sep 11, 2027
base term
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,645,794, to Sep 11, 2027. The term already ends on or before that date, so the cap shortened nothing.
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.
2
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 Sep 11, 2027: 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. 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 11, 2007, when application 11/853,277, the earliest non-provisional in its chain, was filed (this one was filed Jul 8, 2009) | Sep 11, 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 7,645,794) | resolves to Sep 11, 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 3 maintenance fees paid | lapsed Jun 7, 2023 | High confidence |
| Computed term end | The steps above, in order | Jun 7, 2023 | High confidence |
This family
| US 7,645,794 | In force Sep 2027 | Sep 2027 |
| US 7,956,090 | this patent Jun 2023 | Jun 2023 |
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 |
|---|---|---|---|
| Mar 30, 2011 Reel 26050, frame 699 | 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 |
| Apr 21, 2022 Reel 59662, frame 958 | Northern Innovations Holding Corp. | HSBC Bank Canada | Security Interest |
| Apr 26, 2022 Reel 59793, frame 777 | Northern Innovations Holding Corp. | HSBC Bank Canada | Corrective Assignment to Correct the Serial Number of Patent Number 7,645,812 to 7,465,812 Previously Recorded at Reel: 059662 Frame: 0958. Assignor(S) Hereby Confirms the Security Agreement. |
| May 29, 2026 Reel 75647, frame 267 | Royal Bank of Canada | Northern Innovations Holding Corp. | 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.
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,645,794, ends no earlier than this term, so it caps nothing.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2011 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.