The Patent Finder
US

Pipette Tip Washing Device

US 10,155,055 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Jul 22, 2026 (Escalate Capital V, LP).

Term ends Oct 1, 2034 · High confidence

Filed Jun 22, 2016 as application 15/189,750 · Granted Dec 18, 2018
Base term plus 154 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2014 2034
Clock starts
Apr 30, 2014
Term ends
Oct 1, 2034
Granted
Dec 18, 2018
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
154
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 10,285,564, US 9,421,289, US 9,744,570, to Oct 1, 2034. The term already ends on or before that date, so the cap shortened nothing.
2 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.
11
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 154 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 2 of 3 maintenance fees are paid so far. 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 Apr 30, 2014, when application 14/266,330, the earliest non-provisional in its chain, was filed (this one was filed Jun 22, 2016)Apr 30, 2034High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+154 days, USPTO patent term adjustment recordOct 1, 2034High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 10,285,564, US 9,421,289, US 9,744,570)resolves to Oct 1, 2034, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderOct 1, 2034High confidence

This family

US 9,421,289In force
Feb 2035
Feb 2035
US 9,579,696In force
Apr 2034
Apr 2034
US 9,744,570In force
Dec 2034
Dec 2034
US 10,285,564In force
Feb 2035
Feb 2035
US 10,155,055this patent
Oct 2034
Oct 2034
US 10,576,175In force
Apr 2034
Apr 2034
US 10,631,707In force
Apr 2034
Apr 2034
Application 16/744,924Abandoned
not computed
not computed
8 of 11 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
Jun 22, 2016
Reel 38988, frame 64
Safavi, AliHealth Diagnostic Laboratory, Inc.Nunc Pro Tunc Assignment
Jun 22, 2016
Reel 38988, frame 147
Health Diagnostic Laboratory, Inc.Grenova, LLCAssignment of Assignor's Interest
Nov 13, 2018
Reel 47509, frame 347
Grenova, LLCGrenova, Inc.Change of Name
Jul 22, 2026
Reel 75356, frame 61
Grenova, Inc.Escalate Capital V, LPSecurity 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