Collateral for a security interest recorded Jun 13, 2024 (Cerberus Business Finance Agency, LLC).
Term ends no later than Sep 30, 2031 · Medium confidence
20-year base term ends Dec 16, 2028
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Held by Englert, Inc.
Filed Dec 16, 2008 as application 12/316,741 · Granted Dec 25, 2012
Base term plus 1018 days of patent term adjustment (USPTO delay)
Today
2008
2031
Clock starts
Dec 16, 2008
Dec 16, 2008
Ends no later than
Sep 30, 2031
Sep 30, 2031
Granted
Dec 25, 2012
Dec 25, 2012
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
1,018
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
This patent's term runs 1018 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. All three maintenance fees are recorded paid; no more fees are due. Confidence: Medium. 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 Dec 16, 2008, when this application, 12/316,741, was filed | Dec 16, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1018 days, USPTO patent term adjustment record | Sep 30, 2031 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than Sep 30, 2031 | Medium 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 |
|---|---|---|---|
| Dec 16, 2008 Reel 22037, frame 132 | Meyer, Bruce E. | Englert, Inc. | Assignment of Assignor's Interest |
| Jul 1, 2011 Reel 26539, frame 776 | Englert, Inc. | Bank Of America, N.a. | Security Agreement |
| Mar 5, 2019 Reel 48512, frame 945 | Bank Of America, N.a. | Englert, Inc. | Second Termination and Release of Security Agreement |
| Mar 6, 2019 Reel 48516, frame 962 | Englert, Inc. | Midcap Financial Trust | Security Interest |
| Jun 13, 2024 Reel 67725, frame 100 | Great Day Improvements, LLC; Universal Windows Direct, LLC; Champion Window Manufacturing and Supply Co., LLC; The Bath Authority LLC; Englert, Inc.; Leafguard Holdings, Inc. | Cerberus Business Finance Agency, LLC, as Collateral Agent | Intellectual Property Security Agreement |
| Jun 14, 2024 Reel 67735, frame 100 | Midcap Financial Trust | Englert, Inc. | Termination and Release of Security Interest in Patents |
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.
What's changing
Sep 2031
Term ends no later than Sep 30, 2031. No further fees fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 1018 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Sep 30, 2031. We will not guess the cap.
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2012 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.