The Patent Finder
US

System and Method for Analyte Measurement Using Dose Sufficiency Electrodes

US 8,663,442 In force
OverviewFamilyAssignmentsSources & methods

Also listed on Roche Diagnostics Operations, Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Nov 27, 2026 · High confidence

Filed Oct 20, 2008 as application 12/254,515 · Granted Mar 4, 2014
Base term plus 1137 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2003 2026
Clock starts
Oct 17, 2003
Term ends
Nov 27, 2026
Granted
Mar 4, 2014
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
1,137
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.
139
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 1137 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 Oct 17, 2003, when application 10/687,958, the earliest non-provisional in its chain, was filed (this one was filed Oct 20, 2008)Oct 17, 2023High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1137 days, USPTO patent term adjustment recordNov 27, 2026High 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 orderNov 27, 2026High confidence

This family

US 6,623,697Lapsed on the fee record
Sep 2011
Sep 2011
US 6,767,440Term ended
May 2022
May 2022
US 6,706,000Term ended
no later than Mar 2020
no later than Mar 2020
US 6,866,675Term ended
Jan 2022
Jan 2022
US 6,878,120Lapsed on the fee record
Apr 2009
Apr 2009
Application 60/370,683Pending
not computed
not computed
US 6,818,416Term ended
Apr 2020
Apr 2020
US 6,858,015Term ended
May 2022
May 2022
8 of 139 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
Jan 12, 2009
Reel 22088, frame 160
Burke, David W.; Surridge, Nigel; Groll, HenningRoche Diagnostics Operations, Inc.Assignment of Assignor's Interest
Jan 12, 2009
Reel 22088, frame 299
Roche Diagnostics Operations, Inc.Corange International LimitedAssignment of Assignor's Interest
Jan 30, 2009
Reel 22184, frame 597
Roche Diagnostics Operations, Inc.Corange International LimitedCorrective Assignment to Correct the Assignment of Assignor's Interest Previously Recorded on Reel 022088 Frame 0299. Assignor(S) Hereby Confirms the Assignment to Corange International Limited of an Undivided One-Half Interest..
May 5, 2009
Reel 22634, frame 371
Corange International LimitedRoche Operations Ltd.Change of Name
Jun 23, 2015
Reel 36008, frame 670
Roche Diagnostics Operations, Inc.Roche Diabetes Care, Inc.Assignment of Assignor's Interest
Apr 24, 2024
Reel 67204, frame 694
Roche Operations Ltd.Roche Diabetes Care, 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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited