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Optical Navigation Apparatus Using Fixed Beacons and a Centroid Sensing Device

US 7,729,515 In force, term unresolved
OverviewFamilyAssignmentsSources & methods

Term ends no later than Mar 16, 2029 · Medium confidence

In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.

Filed Oct 31, 2006 as application 11/591,403 · Granted Jun 1, 2010
Base term plus 867 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2006 2029
Clock starts
Oct 31, 2006
Ends no later than
Mar 16, 2029
Granted
Jun 1, 2010
base term patent term adjustment 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
867
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
11
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 runs 867 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. All three maintenance fees are recorded paid; no more fees are due. 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Oct 31, 2006, when this application, 11/591,403, was filedOct 31, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+867 days, USPTO patent term adjustment recordMar 16, 2029High confidence
Terminal disclaimer capDisclaimer on file (approved), reference document not resolvedno cap applied, and none guessedMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderno later than Mar 16, 2029Medium confidence

This family

US 8,542,219In force
May 2027
May 2027
US 7,729,515this patent
no later than Mar 2029
no later than Mar 2029
US 7,826,641Term ended
Oct 2026
Oct 2026
US 7,961,909Term ended
Oct 2026
Oct 2026
US 8,553,935Term ended
Oct 2024
Oct 2024
US 10,191,559Term ended
Jan 2024
Jan 2024
Application 16/653,084Abandoned
not computed
not computed
Application 18/198,223Pending
not computed
not computed
8 of 11 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.
RecordedAssignorAssigneeConveyance
Oct 31, 2006
Reel 18497, frame 165
Mandella, Michael J.; Gonzalez-banos, Hector H.; Hawks, Timothy J.; Alboszta, MarekElectronic Scripting Products, 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.

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