The Patent Finder

Kupferle, LLC

5 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Jun 2035
Next term end

When these terms end

Held patents by the year their term ends
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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 11, 2027
    The maintenance fee for Sampling meter resetter and pressure transmitter combination (US 11,698,319) comes due Jan 11, 2027. Unpaid by Jul 12, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 1 term has ended since Aug 16, 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.

Showing 1 to 5 of 5

PatentTitleStatus Expires Confidence
US 10,041,232Self-maintaining automatic flushing valve with internal freeze protection
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,927,277Plastic body meter resetter
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,698,319Sampling meter resetter and pressure transmitter combination
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,474,227Rod-mounted pressure sensor
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,733,390Automatic flushing device for municipal water systems
In force
Term ended Sep 18, 2026 · From the USPTO record
In forceTerm ended Sep 18, 2026From the USPTO record
Also on record, not counted in the 5: 1 lapsed for an unpaid fee · 2 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

List them

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