Term ended Dec 23, 2023 · High confidence
20-year base term ended Dec 23, 2023
USPTO later recorded it as expired for non-payment on Jun 10, 2024.
Held by Marlow Technologies, LLC
Filed Aug 12, 2009 as application 12/540,137 · Granted May 8, 2012
Base term, 20 years from filing
Today
Term ended Dec 23, 2023
2003
2026
Clock starts
Dec 23, 2003
Dec 23, 2003
Term ended
Dec 23, 2023
Dec 23, 2023
Granted
May 8, 2012
May 8, 2012
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 7,657,622, to Dec 23, 2023. The term already ends on or before that date, so the cap shortened nothing.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
5
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. 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 Dec 23, 2003, when application 10/743,430, the earliest non-provisional in its chain, was filed (this one was filed Aug 12, 2009) | Dec 23, 2023 | 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 7,657,622) | resolves to Dec 23, 2023, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | term ended | High confidence |
| USPTO status record | Recorded as expired for non-payment on Jun 10, 2024, after the term ended | no change | High confidence |
| Computed term end | The steps above, in order | Dec 23, 2023 | High confidence |
This family
| US 7,657,622 | Term ended Nov 2026 | Nov 2026 |
| US 8,176,172 | this patent Dec 2023 | Dec 2023 |
| US 8,943,193 | Term ended Jun 2024 | Jun 2024 |
| US 9,385,932 | Term ended Dec 2023 | Dec 2023 |
| US 10,063,442 | Term ended Dec 2023 | Dec 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 |
|---|---|---|---|
| Aug 20, 2014 Reel 33571, frame 789 | Douglis, Frederick; Shur, David H.; Sommer, Joseph M.; Van Der Merwe, Jacobus E. | AT&T Corp. | Assignment of Assignor's Interest |
| Aug 20, 2014 Reel 33574, frame 765 | AT&T Corp. | AT&T Properties, LLC | Assignment of Assignor's Interest |
| Aug 20, 2014 Reel 33574, frame 891 | AT&T Properties, LLC | AT&T Intellectual Property II, L.P. | Assignment of Assignor's Interest |
| Dec 9, 2014 Reel 34565, frame 71 | AT&T Intellectual Property II, L.P. | Marlow Technologies, LLC | Assignment of Assignor's 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 7,657,622, ends no earlier than this term, so it caps nothing.
Citations
238
later US patents cite this one
That is top 5% 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
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.