The Patent Finder
US

Laser System and Method for Correction of Induced Astigmatism

US 12,440,380 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Aug 11, 2026 (Salem Five Cents Savings Bank).

Term ends Jul 7, 2030 · High confidence

Held by Lensar, Inc.
Filed Aug 7, 2023 as application 18/230,702 · Granted Oct 14, 2025
Base term, 20 years from filing
Today
20 years from filing
2010 2030
Clock starts
Jul 7, 2010
Term ends
Jul 7, 2030
Granted
Oct 14, 2025
base term Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,617,146, to Jul 7, 2030. The term already ends on or before that date, so the cap shortened nothing.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
6
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 0 of 1 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 Jul 7, 2010, when application 12/831,859, the earliest non-provisional in its chain, was filed (this one was filed Aug 7, 2023)Jul 7, 2030High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,617,146)resolves to Jul 7, 2030, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 1 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJul 7, 2030High confidence

This family

US 8,617,146In force
Mar 2031
Mar 2031
US 9,655,781In force
Mar 2031
Mar 2031
US 11,224,541In force
no later than Jul 2030
no later than Jul 2030
Application 16/442,458Abandoned
not computed
not computed
US 11,717,444In force
no later than Jul 2030
no later than Jul 2030
US 12,440,380this patent
Jul 2030
Jul 2030
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
Sep 17, 2025
Reel 72907, frame 61
Lensar, LLC.Lensar, Inc.Assignment of Assignor's Interest
Aug 11, 2026
Reel 76463, frame 914
Lensar, Inc.Salem Five Cents Savings BankSecurity 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 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited