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Centralizer-Based Survey and Navigation Device and Method

US 7,584,808 In force
OverviewFamilyAssignmentsSources & methods

Term ends Aug 29, 2027 · High confidence

Filed Dec 14, 2005 as application 11/302,384 · Granted Sep 8, 2009
Base term plus 623 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2005 2027
Clock starts
Dec 14, 2005
Term ends
Aug 29, 2027
Granted
Sep 8, 2009
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
623
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.
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 runs 623 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Dec 14, 2005, when this application, 11/302,384, was filedDec 14, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+623 days, USPTO patent term adjustment recordAug 29, 2027High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderAug 29, 2027High confidence

This family

US 7,584,808this patent
Aug 2027
Aug 2027
US 7,870,912Term ended
Dec 2025
Dec 2025
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
Mar 27, 2006
Reel 17724, frame 377
Dolgin, Benjamin; Suliga, William; Goldstein, Brett; Vickerman, David; Hill, John L., III; Shenhar, Joram; Grindstaff, Keith; Cotten, StevenRaytheon Utd, IncorporatedAssignment of Assignor's Interest
Jan 11, 2012
Reel 27515, frame 784
Raytheon Utd Inc.Raytheon CompanyMerger
Apr 1, 2024
Reel 66960, frame 411
Columbus Buyer LLC; Raytheon Blackbird Technologies, Inc.; Raytheon Foreground Security, Inc.Wells Fargo Bank, N.A., as Collateral AgentSecurity Interest
Jul 2, 2024
Reel 68233, frame 420
Raytheon CompanyColumbus Buyer LLCAssignment of Assignor's Interest
Jul 3, 2024
Reel 68106, frame 251
Columbus Buyer LLCNightwing Group, LLCChange of Name

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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