Also listed on Olympus Optical Co., Ltd., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jul 5, 2028 · High confidence
20-year base term ended Oct 21, 2022
Held by Olympus Corporation
Filed Oct 21, 2002 as application 10/277,022 · Granted Mar 16, 2010
Base term plus 2084 days of patent term adjustment (USPTO delay)
Today
2002
2028
Clock starts
Oct 21, 2002
Oct 21, 2002
Term ends
Jul 5, 2028
Jul 5, 2028
Granted
Mar 16, 2010
Mar 16, 2010
base term
patent term adjustment
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
2,084
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.
This patent's term runs 2084 days past its 20-year base term on 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 21, 2002, when this application, 10/277,022, was filed | Oct 21, 2022 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +2084 days, USPTO patent term adjustment record | Jul 5, 2028 | 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 | Jul 5, 2028 | 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 |
|---|---|---|---|
| Oct 21, 2002 Reel 13412, frame 817 | Ueda, Tomoaki | Olympus Optical Co., Ltd. | Assignment of Assignor's Interest |
| Jan 12, 2004 Reel 14882, frame 895 | Olympus Optical Co., Ltd. | Olympus Corporation | Change of Name |
| Jun 27, 2016 Reel 39344, frame 502 | Olympus Corporation | Olympus Corporation | Change of Address |
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
Jul 2028
Term ends Jul 5, 2028. No further fees fall due before then
Note
The 2084 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
29
later US patents cite this one
That is top 25% of utility patents granted in 2010 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.