The Patent Finder

Burndy LLC

25 patents currently held · Updated Nov 14, 2026
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 4 name spellings.

5
Ending by 2030
Dec 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 Feb 6, 2027
    The maintenance fee for Conductor spacer assembly with locking feature (US 10,374,407) comes due Feb 6, 2027. Unpaid by Aug 6, 2027, it lapses early.
  • 2 fees due Mar 5 to 26, 2027 · next Mar 5
  • 1 fee due May 5, 2027
    The maintenance fee for Captive shear bolt (US 10,465,732) comes due May 5, 2027. Unpaid by Nov 5, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

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 7,562,668Excess flow valves
In force
 · From the USPTO record
In forceFrom the USPTO record
US D709,457Electrical hotline bail connector
In force
 · From the USPTO record
In forceFrom the USPTO record
US D709,458Electrical lead clamp
In force
 · From the USPTO record
In forceFrom the USPTO record
US D709,459Electrical banding lead clamp
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,776,826Excess flow valves
In force
 · From the USPTO record
In forceFrom the USPTO record
US D911,157Captive shear bolt
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,465,732Captive shear bolt
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,085,480Captive shear bolt
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,982,303Captive shear bolt
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,286,996Captive shear bolt
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 25 patents shown.
Pro members see all 25.
Pro members: see all 25 patents
Also on record, not counted in the 25: 1 patent in force now held by others · 3 lapsed for an unpaid fee · 202 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.

6 pending · 2 no status recorded

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