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US

V-Bank Air Filtration System Such as for Animal Confinement

US 8,747,505 In force
OverviewFamilyAssignmentsSources & methods

Term ends May 24, 2032 · High confidence

Filed Jun 21, 2011 as application 13/165,379 · Granted Jun 10, 2014
Base term plus 338 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2011 2032
Clock starts
Jun 21, 2011
Term ends
May 24, 2032
Granted
Jun 10, 2014
base term patent term adjustment fee events 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
338
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.
5
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 338 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 21, 2011, when this application, 13/165,379, was filedJun 21, 2031High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+338 days, USPTO patent term adjustment recordMay 24, 2032High 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 orderMay 24, 2032High confidence

This family

Application 61/357,437Provisional application
no patent term
no patent term
Application 61/490,896Provisional application
no patent term
no patent term
US 8,747,505this patent
May 2032
May 2032
US 9,126,135In force
Nov 2031
Nov 2031
Application PCT/US2013/042450PCT application
no patent term
no patent term
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
Aug 18, 2011
Reel 26774, frame 131
Crabtree, Lamonte A.; Chesson, Richard K., JR.; Geil, Ronald J., JR.Clarcor Inc.Assignment of Assignor's Interest
May 24, 2012
Reel 28264, frame 908
Clarcor Inc.Clarcor Air Filtration Products, Inc.Assignment of Assignor's Interest
Oct 1, 2020
Reel 53946, frame 203
Clarcor Air Filtration Products, Inc.Clarcor Inc.Merger
Oct 1, 2020
Reel 53946, frame 593
Clarcor, Inc.Parker-Hannifin CorporationMerger
Nov 10, 2020
Reel 54371, frame 141
Parker-Hannifin CorporationParker Intangibles LLCAssignment of Assignor's Interest
Apr 27, 2023
Reel 63461, frame 669
Parker Intangibles LLCParker-Hannifin CorporationAssignment 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.

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