Term ends Oct 29, 2033 · High confidence
20-year base term ends Oct 29, 2033
Held by Synopsys, Inc.
Filed Oct 29, 2013 as application 14/065,754 · Granted Feb 10, 2015
Base term, 20 years from filing
Today
2013
2033
Clock starts
Oct 29, 2013
Oct 29, 2013
Term ends
Oct 29, 2033
Oct 29, 2033
Granted
Feb 10, 2015
Feb 10, 2015
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.
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.
This patent's term is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Oct 29, 2013, when this application, 14/065,754, was filed | Oct 29, 2033 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 29, 2033 | High confidence |
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 |
|---|---|---|---|
| Jan 10, 2014 Reel 31944, frame 497 | Mishra, Kishore; Mohanty, Purna C.; Rao, Venkata N.s.n. | Kool Chip, Inc. | Assignment of Assignor's Interest |
| Oct 13, 2015 Reel 36785, frame 762 | Kool Chip, Inc. | Soctronics, Inc. | Assignment of Assignor's Interest |
| May 20, 2019 Reel 49233, frame 278 | Soctronics, Inc. | Invecas, Inc. | Assignment of Assignor's Interest |
| Feb 29, 2020 Reel 51971, frame 624 | Invecas, Inc. | Synopsys, Inc. | 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
Oct 2033
Term ends Oct 29, 2033. No further fees fall due before then
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2015 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.