Term ends Jul 12, 2029 · Medium confidence
20-year base term ends Jun 12, 2029
Why Medium: A parent in the chain could not be resolved.
Filed Dec 16, 2010 as application 12/970,248 · Granted May 21, 2013
Base term plus 30 days of patent term adjustment (USPTO delay)
Today
2009
2029
Clock starts
Jun 12, 2009
Jun 12, 2009
Term ends
Jul 12, 2029
Jul 12, 2029
Granted
May 21, 2013
May 21, 2013
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
30
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
7
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 runs 30 days past its 20-year base term on prosecution delay. 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 Jun 12, 2009, when application PCT/US2009/003559, the earliest non-provisional in its chain, was filed (this one was filed Dec 16, 2010); a parent in its chain could not be resolved (the next row) | Jun 12, 2029 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +30 days, USPTO patent term adjustment record | Jul 12, 2029 | 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 | Jul 12, 2029 | Medium confidence |
This family
| US 7,397,991 | In force Dec 2026 | Dec 2026 |
| Application PCT/US2007/025308 | PCT application no patent term | no patent term |
| US 7,668,427 | In force Dec 2026 | Dec 2026 |
| Application PCT/US2009/003559 | PCT application no patent term | no patent term |
| US 7,995,885 | In force Mar 2027 | Mar 2027 |
| US 8,447,154 | this patent Jul 2029 | Jul 2029 |
| US 9,494,754 | In force Jun 2029 | Jun 2029 |
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 |
|---|---|---|---|
| Dec 16, 2010 Reel 25512, frame 197 | Guenter, Cory; Register, James, III; Rhyne, Todd | Corning Cable Systems LLC | Assignment of Assignor's Interest |
| Sep 9, 2014 Reel 33699, frame 536 | Corning Cable Systems LLC | Corning Optical Communications LLC | Change of Name |
| Sep 9, 2014 Reel 33699, frame 759 | Corning Optical Communications LLC | CCS Technology, Inc. | Assignment of Assignor's Interest |
| Aug 18, 2017 Reel 43601, frame 427 | CCS Technology, Inc.; Corning Optical Communications Brands, Inc. | Corning Optical Communications LLC | Merger |
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
Jul 2029
Term ends Jul 12, 2029. No further fees fall due before then
Note
The 30 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is below the median of utility patents granted in 2013 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.