Term ends Dec 21, 2030 · Medium confidence
20-year base term ends Dec 21, 2030
Why Medium: A parent in the chain could not be resolved.
Held by Magstim Group, Incorporated
Filed Feb 21, 2017 as application 15/437,765 · Granted Sep 4, 2018
Base term, 20 years from filing
Today
2010
2030
Clock starts
Dec 21, 2010
Dec 21, 2010
Term ends
Dec 21, 2030
Dec 21, 2030
Granted
Sep 4, 2018
Sep 4, 2018
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.
5
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: Medium. 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 21, 2010, when application 12/928,914, the earliest non-provisional in its chain, was filed (this one was filed Feb 21, 2017); a parent in its chain could not be resolved (the next row) | Dec 21, 2030 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium 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 | Dec 21, 2030 | Medium confidence |
This family
| Application 12/928,914 | Abandoned not computed | not computed |
| US 9,326,699 | In force Sep 2031 | Sep 2031 |
| US 10,065,034 | this patent Dec 2030 | Dec 2030 |
| US 11,234,631 | In force Mar 2032 | Mar 2032 |
4 of 5 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 |
|---|---|---|---|
| May 7, 2018 Reel 45733, frame 192 | Tucker, Don M. | Electrical Geodesics, Inc. | Assignment of Assignor's Interest |
| May 22, 2018 Reel 46204, frame 588 | Electrical Geodesics, Inc. | Philips North America LLC | Assignment of Assignor's Interest |
| Aug 17, 2020 Reel 53511, frame 386 | Philips North America LLC | Magstim Group, 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.
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Alerts on its grants, lapses and transfers.
What's changing
Dec 2030
Term ends Dec 21, 2030. Maintenance fees still fall due before then
Citations
1
later US patent cites this one
That is below the median 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.