Also listed on The Eastern Company, an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Sep 25, 2019 (Cerberus Business Finance, LLC).
Term ends Nov 29, 2026 · High confidence
20-year base term ends Nov 29, 2026
Held by Eastern Metal Supply, Inc.
Filed Nov 29, 2006 as application 11/605,973 · Granted Nov 20, 2007
Base term, 20 years from filing
Today
2006
2026
Clock starts
Nov 29, 2006
Nov 29, 2006
Term ends
Nov 29, 2026
Nov 29, 2026
Granted
Nov 20, 2007
Nov 20, 2007
base term
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.
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.
This patent's term is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 29, 2006, when this application, 11/605,973, was filed | Nov 29, 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 | In force | High confidence |
| Computed term end | The steps above, in order | Nov 29, 2026 | High 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 |
|---|---|---|---|
| Nov 12, 2015 Reel 37021, frame 830 | Tigress Trading Co., Inc.; Tigress Specialty Metals Products Manufacturing, Inc. | Eastern Metal Supply, Inc. | Assignment of Assignor's Interest |
| May 13, 2016 Reel 38589, frame 487 | Wilcox, Scott A. | Tigress Trading Co., Inc. | Assignment of Assignor's Interest |
| Jun 21, 2016 Reel 38973, frame 422 | Wilcox, Roger S. | Tigress Trading Co., Inc. | Nunc Pro Tunc Assignment |
| Jun 28, 2016 Reel 39184, frame 11 | Tigress Trading Co., Inc. | Eastern Metal Supply, Inc. | Confirmatory Assignment |
| Sep 25, 2019 Reel 50484, frame 112 | Eastern Metal Supply, Inc. | Cerberus Business Finance, LLC, as Collateral Agent | Grant of a Security Interest -- Patents |
| Dec 21, 2023 Reel 65928, frame 704 | Eastern Metal Supply Holdings, Inc.; Eastern Metal Supply, Inc. | Pnc Bank, National Association | Security Interest |
| Dec 30, 2025 Reel 74128, frame 509 | Cerberus Business Finance Agency, LLC | Pnc Bank, National Association | Assignment of Security Interest in Patent Collateral |
| Jan 6, 2026 Reel 73383, frame 343 | Eastern Metal Supply, Inc. | TCW Asset Management Company LLC, as Agent | 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.
What's changing
Nov 2026
Term ends Nov 29, 2026. No further fees fall due before then
Citations
31
later US patents cite this one
That is top 25% of utility patents granted in 2007 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.