Term ended Sep 20, 2026 · High confidence
20-year base term ended Dec 23, 2024
Filed Dec 23, 2004 as application 11/020,835 · Granted Jul 7, 2009
Base term plus 636 days of patent term adjustment (USPTO delay)
Today
Term ended Sep 20, 2026
2004
2026
Clock starts
Dec 23, 2004
Dec 23, 2004
Term ended
Sep 20, 2026
Sep 20, 2026
Granted
Jul 7, 2009
Jul 7, 2009
base term
patent term adjustment
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
636
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 636 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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, 2004, when this application, 11/020,835, was filed | Dec 23, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +636 days, USPTO patent term adjustment record | Sep 20, 2026 | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Sep 20, 2026 | High confidence |
This family
| US 7,557,154 | this patent Sep 2026 | Sep 2026 |
| US 7,807,745 | In force Aug 2028 | Aug 2028 |
| US 8,034,866 | Term ended Jun 2025 | Jun 2025 |
| US 8,067,493 | Term ended Mar 2025 | Mar 2025 |
| Application PCT/US2009/043048 | PCT application no patent term | no patent term |
| Application PCT/US2009/043046 | PCT application no patent term | no patent term |
6 of 7 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 |
|---|---|---|---|
| Jul 14, 2005 Reel 16776, frame 603 | Agarwal, Naveen; Gaggar, Satish Kumar; Gupta, Deval; Gupta, Samik; Krishnamurthy, Raja; Preschilla, Nisha; Totad, Rajashekhar Shiddappa; Tyagi, Sandeep | General Electric Company | Assignment of Assignor's Interest |
| May 1, 2008 Reel 20985, frame 551 | General Electric Company | SABIC Innovative Plastics IP B.V. | Assignment of Assignor's Interest |
| Aug 18, 2008 Reel 21423, frame 1 | SABIC Innovative Plastics IP B.V. | Citibank, N.A., as Collateral Agent | Security Agreement |
| Mar 17, 2014 Reel 32459, frame 798 | Citibank, N.a. | SABIC Innovative Plastics IP B.V. | Release of 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
Note
The 636 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
140
later US patents cite this one
That is top 5% of utility patents granted in 2009 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.