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Mattress

US 11,202,517 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Nov 4, 2022 (Second Avenue Capital Partners LLC).

Lapsed Dec 21, 2025 on the fee record · Medium confidence

Why Medium: A parent in the chain could not be resolved.

First maintenance fee unpaid; grace period ended.

Filed Jan 16, 2018 as application 15/872,737 · Granted Dec 21, 2021
Base term, 20 years from filing, plus 610 days of patent term adjustment (USPTO delay)
Today
Lapsed Dec 21, 2025
2015 2036
Clock starts
Apr 17, 2015
No longer in force
Dec 21, 2025
Granted
Dec 21, 2021
Term would have run to
Dec 17, 2036
base term patent term adjustment after the term ends 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
610
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
7
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

Its term would have run to Dec 17, 2036: its 20-year base term plus 610 days of term 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, 20 years from filingClock starts Apr 17, 2015, when application 14/689,945, the earliest non-provisional in its chain, was filed (this one was filed Jan 16, 2018); a parent in its chain could not be resolved (the next row)Apr 17, 2035High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustment+610 days, USPTO patent term adjustment recordDec 17, 2036High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidlapsed Dec 21, 2025High confidence
Computed term endThe steps above, in orderDec 21, 2025Medium confidence

This family

US 9,888,785In force
Dec 2035
Dec 2035
Application PCT/US2015/026564PCT application
no patent term
no patent term
US 9,661,934Lapsed on the fee record
May 2025
May 2025
US 9,962,009Lapsed on the fee record
May 2026
May 2026
Application 15/482,777Abandoned
not computed
not computed
US 11,202,517this patent
Dec 2025
Dec 2025
US 11,622,636In force
Apr 2035
Apr 2035
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 16, 2018
Reel 44632, frame 274
Krim, Philip; Parikh, Neil; Chapin, JeffCasper Sleep Inc.Assignment of Assignor's Interest
Nov 17, 2021
Reel 58176, frame 712
Casper Sleep Inc.Triplepoint Venture Growth BDC Corp.Security Interest
Jan 21, 2022
Reel 58807, frame 227
Casper Sleep Inc.Triplepoint Venture Growth BDC Corp.Corrective Assignment to Correct the the Patent Application Number 29756442 Previously Recorded at Reel: 058176 Frame: 0712. Assignor(S) Hereby Confirms the Assignment.
Jan 25, 2022
Reel 58766, frame 483
Casper Sleep Inc.KKR Loan Administration Services LLCSecurity Interest
Jan 28, 2022
Reel 58891, frame 668
Triplepoint Venture Growth BDC Corp.Casper Sleep Inc.Release of Security Interest
Nov 4, 2022
Reel 61658, frame 685
Casper Sleep Inc.Second Avenue Capital Partners LLCSecurity Interest
Nov 7, 2022
Reel 61674, frame 785
KKR Loan Administration Services LLCCasper Sleep Inc.Release of Security Interest
Oct 31, 2023
Reel 65399, frame 633
Casper Sleep Inc.Acquiom Agency Services LLC, as AgentSecurity Interest
Dec 15, 2023
Reel 65885, frame 438
Casper Sleep Inc.Cumulus Capital LLCSecurity Interest
Dec 15, 2023
Reel 66029, frame 913
Casper Sleep Inc.; Second Avenue Capital Partners LLCTiger Finance, LLCAssignment of Intellectual Property Security Agreement
Dec 15, 2023
Reel 66034, frame 963
Acquiom Agency Services LLC, as the AgentCasper Sleep Inc.Release of Security Interest
Mar 27, 2024
Reel 66913, frame 371
Cumulus Capital LLCAcquiom Agency Services LLCAssignment of Intellectual Property Security Agreement
Nov 7, 2024
Reel 69177, frame 174
Acquiom Agency Services LLCCasper Sleep Inc.Release of Security Interest
Nov 7, 2024
Reel 69177, frame 210
Tiger Finance, LLCCasper Sleep Inc.Release of Security 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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