The Patent Finder
PricingSign in
US

Cushion for a Respiratory Mask Assembly

US 11,071,839 Expired (term)

Expired Jun 15, 2025 · Medium confidence

Held by Resmed Pty Ltd.
Filed May 19, 2020 · Granted Jul 27, 2021
Base term, 20y-from-earliest-nonprovisional
Today
20y-from-earliest-nonprovisional
Term ended Jun 15, 2025
2005 2026
Clock starts
Jun 15, 2005
Term ended
Jun 15, 2025
Granted
Jul 27, 2021
base term fee events Computed Sep 27, 2026 · how we know
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
1 of 3
Maintenance fees paid
Windows the record shows paid, at 4, 8 and 12 years from grant.
11
Applications in this family
Applications sharing this one's continuity chain.

This patent's term is the statutory base term, with no adjustment for prosecution delay. 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, 20y-from-earliest-nonprovisionalClock starts Jun 15, 2005Jun 15, 2025High confidence
Continuity chainchain has unresolved parents (dated from child's own claim)dated from this application's own claimMedium confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidExpired (term)High confidence
Computed term endThe steps above, in orderJun 15, 2025Medium confidence

This family

US 7,971,590In forceAug 2028
US 8,353,294Expired (term)Jul 2025
US 9,375,545Lapsed (fee unpaid)Jun 2024
US 10,039,893Expired (term)Jun 2025
US 10,668,241Lapsed (fee unpaid)Jun 2024
US 11,071,839this patentJun 2025
US 11,529,489Expired (term)Jun 2025

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 22, 2020
Reel 54134, frame 126
Frater, Robert Henry; Drew, Joanne Elizabeth; Kwok, Philip Rodney; Mcauliffe, Patrick John; Davidson, Aaron Samuel; Hitchcock, Robin GarthResmed LimitedAssignment of Assignor's Interest
Oct 22, 2020
Reel 54134, frame 183
Gunaratnam, Michael KassipillaiResmed LimitedAssignment of Assignor's Interest
Oct 22, 2020
Reel 54134, frame 229
Darkin, Donald; Robinson, Gary ChristopherResmed LimitedAssignment of Assignor's Interest
Oct 22, 2020
Reel 54175, frame 599
Resmed LimitedResmed Pty Ltd.Change of Name
Oct 22, 2020
reel/frame not recorded
Mcauliffe, Patrick John; Hitchcock, Robin Garth; Davidson, Aaron Samuel; Drew, Joanne Elizabeth; Kwok, Philip Rodney; Frater, Robert HenryResmed LimitedAssignment of Assignor's Interest

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

Maintenance fee events come from USPTO's own fee records. USPTO does not publish a per-patent fee page, so there is nothing to link to.

Free plan: 3 watched companies. Pro: unlimited.
alerts on grants, lapses, transfers

What's changing

Citations

1
later US patent cite this one
Patents granted this recently have not had time to be cited, so we show the count and do not rank on it. How we rank
Every date shows its work: base rule, PTA, PTE, disclaimer caps, fee overlay, 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.
OverviewFamilyAssignmentsSources & methods
The Patent Finder CompaniesExpirationsWatchlistPricingMethodology TermsPrivacyCookiesDMCACorrectionssupport@thepatentfinder.com Part of 137 Finder · © 2026 137 Finder LLC · Sources cited