The Patent Finder
US

Proppant Discharge System and a Container for Use in Such a Proppant Discharge System

US 8,668,430 Surrendered on reissue
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Jul 31, 2024 (Wilmington Trust, National Association).

Surrendered on reissue Mar 7, 2017 · Medium confidence

Why Medium: No fee event states this; the fee state is read from the payments the fee record holds.

Surrendered on reissue Mar 7, 2017 · its term and maintenance fees continue in US RE46,334.

Filed Oct 25, 2012 as application 13/660,870 · Granted Mar 11, 2014
Base term, 20 years from filing, plus 38 days of patent term adjustment (USPTO delay)
Today
Surrendered Mar 7, 2017
2012 2032
Clock starts
Jul 23, 2012
No longer in force
Mar 7, 2017
Granted
Mar 11, 2014
Term would have run to
Aug 30, 2032
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
38
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
Not on record
Maintenance fees
USPTO's record of this patent carries no fee events. A gap in the record, not evidence of lapse.
79
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 38 days past its 20-year base term on prosecution delay. USPTO's record of this patent carries no fee events, so no fee is counted as paid or unpaid. 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 Jul 23, 2012, when application 13/555,635, the earliest non-provisional in its chain, was filed (this one was filed Oct 25, 2012)Jul 23, 2032High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+38 days, USPTO patent term adjustment recordAug 30, 2032High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee eventsNo fee events in USPTO's record of this patent. A gap in the record, not evidence of lapseno changeMedium confidence
ReissueUS RE46,334 issued Mar 7, 2017, and this patent's term continues in it (35 U.S.C. 251, 252)surrendered Mar 7, 2017High confidence
Surrendered on reissueThe steps above, in orderMar 7, 2017Medium confidence

This family

US 8,827,118In force
Dec 2031
Dec 2031
US 8,622,251In force
Jan 2032
Jan 2032
US 9,718,610In force
Sep 2032
Sep 2032
US 10,464,741In force
Jul 2032
Jul 2032
US 8,505,780In force
Dec 2031
Dec 2031
US 8,668,430this patent
Mar 2017
Mar 2017
US 9,725,233In force
Jul 2032
Jul 2032
US 8,585,341In force
Jul 2032
Jul 2032
8 of 79 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
Oct 2, 2013
Reel 31332, frame 957
Oren, John; Oren, JoshuaOren Technologies, LLCAssignment of Assignor's Interest
Oct 9, 2013
Reel 31394, frame 520
Oren Technologies, LLCSandbox Enterprises, LLCLicense
Oct 11, 2016
Reel 40269, frame 285
Sandbox Logistics, LLC; Oren Technologies, LLCBNP ParibasSecurity Interest
Oct 28, 2020
Reel 54443, frame 731
Oren Technologies, LLCSandbox Enterprises, LLCIP Assignment Agreement
Jul 31, 2024
Reel 68236, frame 81
Sandbox Enterprises, LLCWilmington Trust, National Association, as Collateral AgentNotice of Grant of Security Interest in Intellectual Property (First Lien)
Aug 1, 2024
Reel 68324, frame 556
Bnp Paribas, As Collateral AgentSandbox Logistics, LLC; Oren Technologies, LLCRelease of Security Interest
Aug 1, 2024
reel/frame not recorded
Bnp Paribas, As Collateral AgentSandbox Logistics, LLCRelease of Security Interest
Aug 1, 2024
reel/frame not recorded
Bnp Paribas, As Collateral AgentOren Technologies, LLCRelease 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.

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