Lapsed Apr 29, 2026 on the fee record · High confidence
20-year base term ends Dec 13, 2026
Third maintenance fee unpaid; grace period ended.
Held by Infosys Limited
Filed Dec 13, 2006 as application 11/610,442 · Granted Apr 29, 2014
Base term, 20 years from filing, plus 1882 days of patent term adjustment (USPTO delay)
Today
Lapsed Apr 29, 2026
2006
2032
Clock starts
Dec 13, 2006
Dec 13, 2006
No longer in force
Apr 29, 2026
Apr 29, 2026
Granted
Apr 29, 2014
Apr 29, 2014
Term would have run to
Feb 7, 2032
Feb 7, 2032
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
1,882
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
2
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Feb 7, 2032: its 20-year base term plus 1882 days of term adjustment for prosecution delay. 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 13, 2006, when this application, 11/610,442, was filed | Dec 13, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1882 days, USPTO patent term adjustment record | Feb 7, 2032 | 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 | 2 of 3 maintenance fees paid | lapsed Apr 29, 2026 | High confidence |
| Computed term end | The steps above, in order | Apr 29, 2026 | High confidence |
This family
| US 8,713,513 | this patent Apr 2026 | Apr 2026 |
| US 8,146,058 | In force Nov 2030 | Nov 2030 |
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 |
|---|---|---|---|
| May 10, 2007 Reel 19277, frame 513 | Sarkar, Santonu; Rama, Girish Maskeri; Siddaramappa, Nagaraja Nanjegowda; Kak, Avinash C.; Ramachandran, Shubha | Infosys Technologies Ltd. | Assignment of Assignor's Interest |
| Jan 21, 2014 Reel 32008, frame 862 | Infosys Technologies Limited | Infosys Limited | Change of Name |
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 1882 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
6
later US patents cite this one
That is below the median of utility patents granted in 2014 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.