Also listed on Gravitant, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Mar 13, 2034 · High confidence
20-year base term ends Mar 13, 2034
Held by HCL Technologies Limited
Filed Sep 28, 2015 as application 14/868,164 · Granted Nov 21, 2017
Base term, 20 years from filing
Today
2014
2034
Clock starts
Mar 13, 2014
Mar 13, 2014
Term ends
Mar 13, 2034
Mar 13, 2034
Granted
Nov 21, 2017
Nov 21, 2017
base term
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
None
Term adjustment
No prosecution delay on this record.
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.
This patent's term is its 20-year base term, with no adjustment for prosecution delay. 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 Mar 13, 2014, when application 14/210,431, the earliest non-provisional in its chain, was filed (this one was filed Sep 28, 2015) | Mar 13, 2034 | 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 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Mar 13, 2034 | High confidence |
This family
| Application 14/210,431 | Abandoned not computed | not computed |
| US 9,824,390 | this patent Mar 2034 | Mar 2034 |
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 |
|---|---|---|---|
| Sep 28, 2015 Reel 36673, frame 827 | Adapalli, Sridhar; Panzariu, John; Sapuram, Raghunath; Shah, Parth; Roychowdhury, Debasmita | Gravitant, Inc. | Assignment of Assignor's Interest |
| Oct 21, 2016 Reel 40092, frame 45 | Gravitant, Inc. | International Business Machines Corporation | Assignment of Assignor's Interest |
| Sep 13, 2019 Reel 50374, frame 781 | International Business Machines Corporation | HCL Technologies Limited | 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.
What's changing
Mar 2034
Term ends Mar 13, 2034. Maintenance fees still fall due before then
Citations
152
later US patents cite this one
That is top 5% of utility patents granted in 2017 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.