The Patent Finder

Marshall Excelsior Co.

32 patents currently held · Updated Nov 15, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 3 name spellings.

14
Ending by 2030
Nov 2026
Next term end

When these terms end

Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
  • 1 fee due Jan 4, 2027
    The maintenance fee for Bypass valve assembly with integrated flow control valve (US 11,692,634) comes due Jan 4, 2027. Unpaid by Jul 6, 2027, it lapses early.
  • 2 fees due Apr 1 to 29, 2027 · next Apr 1
  • 1 fee due Jun 12, 2027
    The maintenance fee for Combination Valve (US 11,841,086) comes due Jun 12, 2027. Unpaid by Dec 13, 2027, it lapses early.
  • 1 fee due Aug 2, 2027
    The maintenance fee for Gas Convenience Outlet (US 9,249,974) comes due Aug 2, 2027. Unpaid by Feb 2, 2028, it lapses early.
  • 1 fee due Oct 12, 2027
    The maintenance fee for Fluid Transfer System Having Transfer Device and Dry Break Coupler (US 9,310,003) comes due Oct 12, 2027. Unpaid by Apr 12, 2028, it lapses early.
  • 1 fee due Nov 10, 2027
    The maintenance fee for Fluid Transfer Device with Connector (US 9,334,992) comes due Nov 10, 2027. Unpaid by May 10, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 1 term has ended since Aug 17, 2026

Patents held now

Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
PatentTitleStatus Expires Confidence
US D671,022Glow-In-The-Dark Dial Assembly
In force
 · Medium confidence
In forceMedium confidence
US 9,310,003Fluid Transfer System Having Transfer Device and Dry Break Coupler
In force
 · High confidence
In forceHigh confidence
US 9,334,992Fluid Transfer Device with Connector
In force
 · High confidence
In forceHigh confidence
US 9,874,293Fluid Transfer Device with Quick-Acting Shutoff
In force
 · High confidence
In forceHigh confidence
US 8,752,586Fluid Transfer Device with Lock
In force
 · High confidence
In forceHigh confidence
US 7,874,314Motor Fuel Connector with Replaceable Tip Seal
In force
 · High confidence
In forceHigh confidence
US 9,976,683Quick Fill Fluid Connector
In force
 · High confidence
In forceHigh confidence
US 9,249,974Gas Convenience Outlet
In force
 · Medium confidence
In forceMedium confidence
US 9,581,249Valve Assembly
In force
 · High confidence
In forceHigh confidence
US 8,025,075Self-Cleaning Low Emission Bleeder Valve Type Liquid Level Gauge
In force
 · High confidence
In forceHigh confidence
10 of 32 patents shown.
Pro members see all 32.
Pro members: see all 32 patents
Also on record, not counted in the 32: 2 lapsed for an unpaid fee · 4 ended at full term. List them

Sources and methods

Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

Published applications

US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.

1 pending · 3 no status recorded

List them

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