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US

Adjustable Gas Delivery Mask Having a Flexible Gasket

US 7,455,063 In force
OverviewFamilyAssignmentsSources & methods

Also listed on Nellcor Puritan Bennett LLC, an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Nov 20, 2026 · High confidence

Held by Covidien LP
Filed Jun 17, 2005 as application 11/156,047 · Granted Nov 25, 2008
Base term plus 521 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2005 2026
Clock starts
Jun 17, 2005
Term ends
Nov 20, 2026
Granted
Nov 25, 2008
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
521
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 521 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 Jun 17, 2005, when this application, 11/156,047, was filedJun 17, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+521 days, USPTO patent term adjustment recordNov 20, 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 20, 2026High confidence

This family

US 7,455,063this patent
Nov 2026
Nov 2026
US 7,975,693Lapsed on the fee record
Jul 2023
Jul 2023
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
Nov 15, 2005
Reel 16782, frame 826
Geiselhart, Edward M.; Houghton, Chris; Holverson, Erik; Woodard, Brian; Sun, Benjamin K.Nellcor Puritan Bennett IncorporatedAssignment of Assignor's Interest
Sep 9, 2008
Reel 21503, frame 382
Geiselhart, Edward M.; Houghton, Chris; Holverson, Erik; Woodard, Brian; Sun, Benjamin K.Nellcor Puritan Bennett LLCChange of Name
Dec 23, 2008
Reel 22012, frame 807
Geiselhart, Edward M.; Houghton, Chris; Holverson, Erik; Woodard, Brian; Sun, Benjamin K.Nellcor Puritan Bennett LLCChange of Name
Oct 19, 2010
Reel 25161, frame 197
Nellcor Puritan Bennett IncorporatedNellcor Puritan Bennett LLCChange of Name
Nov 30, 2012
Reel 29380, frame 18
Nellcor Puritan Bennett LLCCovidien LPAssignment 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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