Term ends Feb 28, 2033 · High confidence
20-year base term ends Nov 8, 2033
Held by Corning Incorporated
Filed Nov 8, 2013 as application 14/075,593 · Granted Nov 6, 2018
Base term plus 1044 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2013
2033
Clock starts
Nov 8, 2013
Nov 8, 2013
Term ends
Feb 28, 2033
Feb 28, 2033
Granted
Nov 6, 2018
Nov 6, 2018
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
1,044
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,023,495, US 10,307,333, US 10,507,164, US 9,034,442, US 9,428,302, US 9,668,936, US 9,744,099, US 9,763,852, US 9,775,775.
2 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.
41
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 1044 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 2 of 3 maintenance fees are paid so far. 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 8, 2013, when this application, 14/075,593, was filed | Nov 8, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1044 days, USPTO patent term adjustment record | Sep 17, 2036 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,023,495, US 10,307,333, US 10,507,164, US 9,034,442, US 9,428,302, US 9,668,936, US 9,744,099, US 9,763,852, US 9,775,775) | capped to Feb 28, 2033 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 28, 2033 | High confidence |
This family
| US 8,551,898 | In force Oct 2032 | Oct 2032 |
| US 9,763,852 | In force Feb 2033 | Feb 2033 |
| US 9,918,898 | In force Feb 2033 | Feb 2033 |
| US 9,988,174 | In force Feb 2033 | Feb 2033 |
| Application PCT/US2013/048589 | PCT application no patent term | no patent term |
| US 8,753,994 | In force Oct 2032 | Oct 2032 |
| US 9,034,442 | In force Feb 2033 | Feb 2033 |
| Application PCT/US2013/066370 | PCT application no patent term | no patent term |
8 of 41 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Oct 15, 2014 Reel 33955, frame 33 | Chang, Theresa; Danielson, Paul Stephen; Demartino, Steven Edward; Fadeev, Andrei Gennadyevich; Morena, Robert Michael; Pal, Santona; Peanasky, John Stephen; Schaut, Robert Anthony; Venkataraman, Natesan; Verkleeren, Ronald Luce | Corning Incorporated | Assignment of Assignor's Interest |
| May 19, 2015 Reel 35673, frame 191 | Timmons, Christopher Lee | Corning Incorporated | Assignment of Assignor's Interest |
| May 28, 2018 Reel 45910, frame 322 | Bookbinder, Dana Craig | Corning Incorporated | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Feb 2033
Term ends Feb 28, 2033. Maintenance fees still fall due before then
Note
The 1044 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,023,495, US 10,307,333, US 10,507,164, US 9,034,442, US 9,428,302, US 9,668,936, US 9,744,099, US 9,763,852, US 9,775,775.
Citations
132
later US patents cite this one
That is top 5% of utility patents granted in 2018 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.