Collateral for a security interest recorded Dec 2, 2016 (TCF National Bank).
Term ended Jun 6, 2026 · High confidence
20-year base term ended Jun 6, 2026
Held by Nitrofill, LLC
Filed Jan 16, 2009 as application 12/355,472 · Granted Mar 16, 2010
Base term, 20 years from filing
Today
Term ended Jun 6, 2026
2006
2026
Clock starts
Jun 6, 2006
Jun 6, 2006
Term ended
Jun 6, 2026
Jun 6, 2026
Granted
Mar 16, 2010
Mar 16, 2010
base term
after the term ends
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.
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.
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. All three maintenance fees were paid, so no fee lapse ended it. 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 Jun 6, 2006, when application 11/447,079, the earliest non-provisional in its chain, was filed (this one was filed Jan 16, 2009) | Jun 6, 2026 | 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 | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Jun 6, 2026 | High confidence |
This family
| US 7,624,774 | In force Oct 2027 | Oct 2027 |
| US 7,770,608 | Term ended Jun 2026 | Jun 2026 |
| US 7,677,274 | this patent Jun 2026 | Jun 2026 |
| US 8,196,616 | Term ended Jun 2026 | Jun 2026 |
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 |
|---|---|---|---|
| Aug 19, 2010 Reel 24850, frame 679 | Kreska Technologies | Nitrofill, Inc. | Assignment of Assignor's Interest |
| Sep 1, 2010 Reel 24915, frame 618 | Nitrofill, Inc. | Nitrofill, LLC | Assignment of Assignor's Interest |
| Sep 22, 2010 Reel 25026, frame 97 | Nitrofill, LLC, a Delaware Limited Liability Company; Besser Industrial Tools, LLC, a Delaware Limited Liability Company; Vehicle Safety Solutions, LLC, a Florida Limited Liability Company | Deerpath Funding, LP | Security Agreement |
| Nov 2, 2016 Reel 40198, frame 256 | Deerpath Funding, LP | Nitrofill, LLC; Besser Industrial Tools, LLC; Vehicle Safety Solutions, LLC | Release of Security Interest |
| Nov 2, 2016 reel/frame not recorded | Deerpath Funding, LP | Nitrofill, LLC | Release of Security Interest |
| Nov 2, 2016 reel/frame not recorded | Deerpath Funding, LP | Besser Industrial Tools, LLC | Release of Security Interest |
| Nov 2, 2016 reel/frame not recorded | Deerpath Funding, LP | Vehicle Safety Solutions, LLC | Release of Security Interest |
| Nov 17, 2016 Reel 40944, frame 409 | Jay Lighter | Kreska Technologies | Nunc Pro Tunc Assignment |
| Dec 2, 2016 Reel 40492, frame 902 | Nitrofill, LLC | TCF National Bank | Security Interest |
| Aug 12, 2021 Reel 57159, frame 788 | Nitrofill, LLC | Comerica Bank, As Agent | Security Interest |
| Aug 15, 2021 Reel 57180, frame 804 | The Huntington National Bank | Nitrofill, LLC | Release of Security Interest |
| Dec 13, 2023 Reel 65863, frame 908 | Comerica Bank, As Agent | Nitrofill, LLC | Release of Security Interest |
| May 23, 2024 Reel 67514, frame 562 | Nitrofill, LLC, a Delaware Limited Liability Company | Truist Bank, As Administrative Agent | Security Interest |
| Aug 14, 2026 Reel 75656, frame 943 | Truist Bank | Nitrofill, LLC | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2010 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.